Coss-Rolle Ring Seies Compact, Highly Rigid Swivel Ring Achieving a Supeb Rotation Accuacy Fo details, visit THK at www.thk.com Poduct infomation is updated egulaly on the THK website. CATALOG No.382-5E
Coss-Rolle Ring Model RU,RB,RE,RA and RA-C This Coss-Rolle Ring can eceive loads in any diections with high otational accuacy. Suitable fo the joints of industial obot and high pecision otay table. Inne ing Oute ing Rolle Space etaine Stuctue of Coss-Rolle Ring Model RB Stuctue and Featues With the Coss-Rolle Ring, cylindical olles ae aanged with each olle pependicula to the adjacent olle, in a 90 V goove, sepaated fom each othe by a space etaine. This design allows just one beaing to eceive loads in all diections including adial, axial and moment loads. Since the Coss-Rolle Ring achieves high igidity despite the minimum possible dimensions of the inne and oute ings, it is optimal fo applications such as joints and swiveling units of industial obots, swiveling tables of machining centes, otay units of manipulatos, pecision otay tables, medical equipment, measuing instuments and IC manufactuing machines. Concept of the Coss Rolle Ring The Coss-Rolle Ring is a high-igidity, compact, and easy-to-use poduct designed based on the double cone olle beaing and angula contact ball beaing which had been popula. Double ow cone olle beaing Combined angula ball beaing Modeled Compacted Coss-Rolle Ring (Model RB) Coss-Rolle Ring Angula ball beaing Cone olle beaing Width dimension Rigidity Basic load ating Rotational speed 1
High Rotation Accuacy The space etaine fi tting among coss-aayed olles pevents olles fom skewing and the otational toque fom inceasing due to fiction between olles. Unlike conventional types using steel sheet etaines, the Coss-Rolle Ring does not cause unilateal contact of olle o seize. Thus, even unde a peload, the Coss-Rolle Ring povides stable otation toque. Easy Handling The inne and oute ings, which ae sepaable, ae secued to the Coss-Rolle Ring body afte being installed with olles and space etaines in ode to pevent the ings fom sepaating fom each othe. Thus, it is easy to handle the ings when installing the Coss-Rolle Ring. Skewing Pevention The space etaine keeps olles in thei pope position, theeby peventing them fom skewing (tilted olles). This eliminates fiction between olles, thus allowing the smooth motion to be achieved. Rolle Space etaine Inceased Rigidity The olles ae aanged cosswise to the adjacent olle, so one beaing can eceive the load in each diection. It inceases the igidity to thee to fou times geate than the conventional type compaed with the angula ball beaings installed in double ows. Moment Rigidity Diagam 10-4 10 M (moment) 15.876 Gadient angle: ad 9 8 7 6 5 4 3 2 1 Double-ow angula ball beaing RA5008 RB5013 7.938 φ 50.8 Angula Ball Beaing M (moment) M (moment) 13 8 15 8 φ 50 φ 50 0 9.8 19.6 29.4 39.2 Moment: M N-m Model RA5008 Model RB5013 Coss-Rolle Ring 2
Lage Load Capacity (1) The poduct with space etaine adopted in the coss olle ing can have a longe effective contact length of each olle, thus signifi cantly inceasing the load capacity than poducts with conventional steel sheet etaines. The space etaine guides olles by suppoting them ove the entie length of each olle, wheeas the conventional type of etaine suppots them only at a point at the cente of each olle. Such one-point contact cannot suffi ciently pevent skewing. Rolle contact length l 1 l 1 l 2 l 2 l 1 l 2 With a space etaine With a steel sheet etaine (conventional) (2) In the poduct with space etaine, the loaded aeas ae symmetical between the oute ing and the inne ing sides aound the olle longitudinal axis, which makes the distibution of load moe even than poducts with conventional steel sheet etaines, thus making end-face contact diffi cult to occu. Theefoe, the wea is little and the otational motion is smooth. Load aea End-face contact Load aea Load aea Loaded aeas symmetical With a space etaine Load aea Loaded aeas asymmetical With a steel sheet etaine (conventional) 3
Types of the Coss-Rolle Ring Types and Featues Model RU (Integated Inne/Oute Ring Type) The integated design of the unit s inne and oute ings is adopted and the unit can be fi xed using the mounting holes of the inne and oute ings. It eliminates the need fo a pessue flange o housing. Also it is not influenced by the pats accuacy and no assembly eo occus, which enables highly accuate, smooth, and easy assembly of the otation unit. Can be used fo both oute and inne ing otation. Model RU Model RB (Sepaable Oute Ring Type fo Inne Ring Rotation) This is the basic fom of the Coss-Rolle Ring, in which the oute ing ae double-slit and the oute ing is integated. This model is used in locations whee the otational accuacy of the inne ing is equied. It is used, fo example, in the swivel potions of index tables of machine tools. Model RB Model RE (Two-piece Inne Ring Type fo Oute Ring Rotation) Main dimensions of the Coss-Rolle Ring ae the same as model RB and its inne ing is double-slit and its oute ing is integated. This model is used in locations whee the otational accuacy of the oute ing is equied. Model RE 4
USP-Gade Seies of Models RB and RE The otation accuacy of the USP-Gade Seies achieves the ulta pecision gade that supasses the highest accuacy standads such as JIS Class 2, ISO Class 2, DIN P2 and AFBMA ABCE9. Model RA (Sepaable Oute Ring Type fo Inne Ring Rotation) A compact type simila to model RB with the thinnest possible inne and oute ings. Suitable fo locations equiing a lightweight and compact design such as the swivel potions of obots and manipulatos. Model RA-C (Single-Split Type) The main dimensions ae the same as that of model RA and the cost is low with its Singlesplit Oute Ring stuctue. Model RA Model RA-C 5
Selecting a Coss-Rolle Ring The following diagam shows a typical pocedue fo selecting a Coss-Rolle Ring. Detemining the Conditions Selecting a Type Pedicting the Sevice Life Rigidity Accuacy Selecting a beaing size Cleaance Rigidity of the mounting section Accuacy gade Rotational Toque Lubication Methods Inne ing otating Model RB Oute ing otating Model RE Mounting space Models RA-C and RA Static Safety Facto The basic static load ating C 0 efes to the static load with constant diection and magnitude, unde which the calculated contact stess in the cente of the contact aea between the olle and the aceway unde the maximum load is 4000 MPa. (If the contact stess exceeds this level, it will affect the otation.) This value is indicated as C 0 in the specifi cation tables. When a load is statically o dynamically applied, it is necessay to conside the static safety facto as shown below. C0 P0 fs f S : Static safety facto (see Table ) C 0 : Basic static load ating (N) P 0 : Static equivalent adial load (N) Static Safety Facto (f S ) Load conditions Lowe limit of f S Nomal load 1 to 2 Impact load 2 to 3 Taget minimum values fo the static safety facto ae shown in the table above. Fo bette sevice life and othe aspects of dynamic pefomance, THK ecommends maintaining a fi gue of 7 o above. Static Equivalent Radial Load P 0 The static equivalent adial load of the Coss-Rolle Ring is obtained fom the following equation. P0 X0 F 2M dp Y0 Fa Moment (M) P 0 : Static equivalent adial load (N) F : Radial load (N) Fa : Axial load (N) M : Moment (N-mm) X 0 : Static adial facto (X 0 =1) Y 0 : Static axial facto (Y 0 =0.44) dp : Rolle pitch cicle (mm) Radial load (F) Axial load (Fa) Moment (M) 6
Nominal Life Nominal Life The sevice life of the Coss-Rolle Ring is obtained fom the following equation. 10 ft C 3 L 10 6 fw PC L : Nominal life (The total numbe of evolutions that 90% of a goup of identical Coss- Rolle Ring units independently opeating unde the same conditions can achieve without showing fl aking fom olling fatigue) C : Basic dynamic load ating (N) P C : Dynamic equivalent adial load (N) f T : Tempeatue facto (see Fig ) f W : Load facto (see Table ) Tempeatue facto ft 1.0 0.9 0.8 0.7 0.6 0.5 100 150 200 250 Coss-Rolle Ring Tempeatue ( ) Tempeatue Facto (f T ) Note) The nomal sevice tempeatue is 80 o below. If the poduct is to be used at a highe tempeatue, contact THK. The basic dynamic load ating (C) efes to a adial load of unvaying diection and magnitude fo which the ated life (L) is 1 million evolutions, based on a goup of identical Coss-Rolle Rings opeating independently unde identical conditions. Basic dynamic load atings ae shown in the dimensional tables. Rated life is calculated accoding to load and pesumes optimal mounting conditions and adequate lubication. Usage involving back-and-foth motion o low-speed opeation may affect lubication equiements. Please consult THK fo assistance in calculating sevice life fo usage involving back-and-foth motion o low-speed opeation. f w :Load Facto Machines that pefom otay movements ae often subjected to vibation and impact duing opeation. It is diffi cult to accuately identify the cause of vibation fom a moto, geas, o othe dive components, o of impact aising fom fequent stats and stops. In the event of excessive vibation o impact, divide the basic dynamic load ating (C) by the coesponding load facto, using the empiically obtained fi gues in Table as guidelines. Calculating the Sevice Life Time Fo Rotay Motion Lh L N 60 L h : Sevice life time (h) N : Rotation speed pe minute (min -1 ) Sevice condition Load Facto (f W ) Smooth motion without impact 1 to 1.2 Nomal motion 1.2 to 1.5 Excessive vibation o impact 1.5 to 3 Fo Oscillatoy Motion Lh 2 360 L n 60 θ L h : Sevice life time (h) θ : Rocking angle (deg.) ( see fi gue at below) n o : Numbe of ecipocations pe minute (min -1 ) θ f W Rocking angle: If θ is too small, this will hinde the fomation of an oil film on the contact sufaces between the ace and the olle and may cause fetting. If the poduct will be used in these conditions, contact THK. 7
Dynamic Equivalent Radial Load P C The dynamic equivalent adial load of the Coss-Rolle Ring is obtained fom the following equation. PC X F 2M dp Y Fa P C : Dynamic equivalent adial load (N) F : Radial load (N) Fa : Axial load (N) M : Moment (N-mm) X : Dynamic adial facto (see Table ) Y : Dynamic axial facto (see Table ) dp : Rolle pitch cicle (mm) Radial load (F) Moment (M) Axial load (Fa) Moment (M) Dynamic Radial Facto and Dynamic Axial Facto Classification X Y Fa F + 2M/dp 1.5 1 0.45 Fa F + 2M/dp 1.5 0.67 0.67 If F = 0N and M = 0 N-mm, pefom calculation while assuming that X = 0.67 and Y = 0.67. Fo sevice life calculation with a peload taken into account, contact THK. Static Pemissible Moment The static pemissible moment (M 0 ) of the Coss-Rolle Ring is obtained fom the following equation. dp M0 C0 10 3 2 M 0 : Static Pemissible Moment (kn-m) C 0 : Basic static load ating (kn) dp : Rolle pitch cicle (mm) Static Pemissible Axial Load The static pemissible axial load (Fa o ) of the Coss-Rolle Ring is obtained fom the following equation. Fa0 C0 Y0 Fa 0 : Static pemissible axial load (kn) Y 0 : Static axial facto (Y 0 =0.44) 8
Accuacy Standads The Coss-Rolle Ring is manufactued with the accuacy and the dimensional toleance accoding to Tables below. Rotational Accuacy Axial unout Axial unout Rotational Accuacy of the Inne Ring Radial unout Rotational Accuacy of the Oute Ring Radial unout Rotational Accuacy of the Inne Ring of Model RU Unit: μm Radial unout toleance of the inne ing Axial unout toleance of the inne ing Gade P5 Gade P4 Gade P2 Gade P5 Gade P4 Gade P2 RU42 4 3 2.5 4 3 2.5 RU66 5 4 2.5 5 4 2.5 RU85 5 4 2.5 5 4 2.5 RU124 5 4 2.5 5 4 2.5 RU148 6 5 2.5 6 5 2.5 RU178 6 5 2.5 6 5 2.5 RU228 8 6 5 8 6 5 RU297 10 8 5 10 8 5 RU445 15 12 7 15 12 7 Note1) Fo model RU, gade P5 is standad otational accuacy.(not indicated in model numbe.) Note2) Fo the otational accuacy of a special type o othe types not shown above, contact THK. (Unless othewise specified, otational accuacy gade 0 of models RB and RE will be applied.) Rotational Accuacy of the Oute Ring of Model RU Unit: μm Radial unout toleance of the oute ing Axial unout toleance of the oute ing Gade P5 Gade P4 Gade P2 Gade P5 Gade P4 Gade P2 RU42 8 5 4 8 5 4 RU66 10 6 5 10 6 5 RU85 10 6 5 10 6 5 RU124 13 8 5 13 8 5 RU148 15 10 7 15 10 7 RU178 15 10 7 15 10 7 RU228 18 11 7 18 11 7 RU297 20 13 8 20 13 8 RU445 25 16 10 25 16 10 Note1) Fo model RU, gade P5 is standad otational accuacy.(not indicated in model numbe.) Note2) Fo the otational accuacy of a special type o othe types not shown above, contact THK. (Unless othewise specified, otational accuacy gade 0 of models RB and RE will be applied.) 9
Rotational Accuacy of the Inne Ring of Model RB Unit: μm Nominal dimension Radial unout toleance of the inne ing Axial unout toleance of the inne ing of the beaing inne (d) (mm) Gade Gade PE6 Gade PE5 Gade PE4 Gade PE2 Gade Gade PE6 Gade PE5 Gade PE4 Gade PE2 Above O less 0 Gade Gade Gade Gade 0 Gade Gade Gade Gade P6 P5 P4 P2 P6 P5 P4 P2 18 30 13 8 4 3 2.5 13 8 4 3 2.5 30 50 15 10 5 4 2.5 15 10 5 4 2.5 50 80 20 10 5 4 2.5 20 10 5 4 2.5 80 120 25 13 6 5 2.5 25 13 6 5 2.5 120 150 30 18 8 6 2.5 30 18 8 6 2.5 150 180 30 18 8 6 5 30 18 8 6 5 180 250 40 20 10 8 5 40 20 10 8 5 250 315 50 25 13 10 (6) 50 25 13 10 (6) 315 400 60 30 15 12 (7) 60 30 15 12 (7) 400 500 65 35 18 14 (9) 65 35 18 14 (9) 500 630 70 40 20 16 (10) 70 40 20 16 (10) 630 800 80 (45) (23) (18) (11) 80 (45) (23) (18) (11) 800 1000 90 (50) (25) (20) (12) 90 (50) (25) (20) (12) 1000 1250 100 (55) (28) (22) 100 (55) (28) (22) Note) The values in paentheses ae available only on special odes. Contact THK fo details. Rotational Accuacy of the Oute Ring of Model RE Unit: μm Nominal dimension Radial unout toleance of the oute ing Axial unout toleance of the oute ing of the beaing oute (D) (mm) Gade Gade PE6 Gade PE5 Gade PE4 Gade PE2 Gade Gade PE6 Gade PE5 Gade PE4 Gade PE2 Above O less 0 Gade Gade Gade Gade 0 Gade Gade Gade Gade P6 P5 P4 P2 P6 P5 P4 P2 30 50 20 10 7 5 2.5 20 10 7 5 2.5 50 80 25 13 8 5 4 25 13 8 5 4 80 120 35 18 10 6 5 35 18 10 6 5 120 150 40 20 11 7 5 40 20 11 7 5 150 180 45 23 13 8 5 45 23 13 8 5 180 250 50 25 15 10 7 50 25 15 10 7 250 315 60 30 18 11 7 60 30 18 11 7 315 400 70 35 20 13 8 70 35 20 13 8 400 500 80 40 23 15 (9) 80 40 23 15 (9) 500 630 100 50 25 16 (10) 100 50 25 16 (10) 630 800 120 60 30 20 (13) 120 60 30 20 (13) 800 1000 120 75 (38) (25) (16) 120 75 (38) (25) (16) 1000 1250 120 (75) (40) (27) (18) 120 (75) (40) (27) (18) 1250 1600 120 (75) (42) (30) (20) 120 (75) (42) (30) (20) Note) The values in paentheses ae available only on special odes. Contact THK fo details. Rotational Accuacy of the Inne Ring of Model RA and RA-C Unit: μm Nominal dimension of the beaing inne (d) (mm) Above O less Toleance in adial unout and axial unout 40 65 13 65 80 15 80 100 15 100 120 20 120 140 25 140 180 25 180 200 30 Note) If highe accuacy than the above values is equied fo the inne ing in otational accuacy fo models RA and RA-C, contact THK. Rotational Accuacy of the Oute Ring of Model RA-C Unit: μm Nominal dimension of the beaing oute (D) (mm) Above O less Toleance in adial unout and axial unout 65 80 13 80 100 15 100 120 15 120 140 20 140 180 25 180 200 25 200 250 30 Note) The otational accuacy of the oute ing fo model RA-C indicates the value befoe sepaation. 10
Dimensional Accuacy φ φ D Dimensional Toleance of the Beaing Inne Diamete Dimensional Toleance of the Beaing Oute Diamete Dimensional Toleance of the Beaing Inne Diamete Unit: μm Nominal dimension of the beaing inne (d) (mm) Gades 0, P6, P5, P4, P2 and USP (note 2) Toleance of dm Gade PE6 Gade PE5 Gade PE4 and PE2 Above O less Uppe Lowe Uppe Lowe Uppe Lowe Uppe Lowe 18 30 0 10 0 8 0 6 0 5 30 50 0 12 0 10 0 8 0 6 50 80 0 15 0 12 0 9 0 7 80 120 0 20 0 15 0 10 0 8 120 150 0 25 0 18 0 13 0 10 150 180 0 25 0 18 0 13 0 10 180 250 0 30 0 22 0 15 0 12 250 315 0 35 0 25 0 18 (0) ( 18) 315 400 0 40 0 30 0 23 (0) ( 23) 400 500 0 45 0 35 (0) ( 35) (0) ( 35) 500 630 0 50 0 40 (0) ( 40) (0) ( 40) 630 800 0 75 (0) ( 75) (0) ( 75) (0) ( 75) 800 1000 0 100 (0) ( 100) (0) ( 100) (0) ( 100) 1000 1250 0 125 (0) ( 125) (0) ( 125) Note1) Standad inne accuacy of models RA, RA-C and RU is 0. Fo highe accuacy than 0, contact THK. Note2) dm epesents the aithmetic aveage of the maximum and minimum s obtained in measuing the beaing inne at two points. Note3) Fo accuacy gades in beaing inne with no values indicated in the table, the highest value among low accuacy gades applies. Dimensional Toleance of the Beaing Oute Diamete Unit:μm Nominal dimension of the beaing oute (D) (mm) Gades 0, P6, P5, P4, P2 and USP (note 2) Toleance of Dm Gade PE6 Gade PE5 Gade PE4 and PE2 Above O less Uppe Lowe Uppe Lowe Uppe Lowe Uppe Lowe 30 50 0 11 0 9 0 7 0 6 50 80 0 13 0 11 0 9 0 7 80 120 0 15 0 13 0 10 0 8 120 150 0 18 0 15 0 11 0 9 150 180 0 25 0 18 0 13 0 10 180 250 0 30 0 20 0 15 0 11 250 315 0 35 0 25 0 18 0 13 315 400 0 40 0 28 0 20 0 15 400 500 0 45 0 33 0 23 (0) ( 23) 500 630 0 50 0 38 0 28 (0) ( 28) 630 800 0 75 0 45 0 35 (0) ( 35) 800 1000 0 100 (0) ( 100) (0) ( 100) (0) ( 100) 1000 1250 0 125 (0) ( 125) (0) ( 125) (0) ( 125) 1250 1600 0 160 (0) ( 160) (0) ( 160) (0) ( 160) Note1) Standad oute accuacy of models RA, RA-C and RU is 0. Fo highe accuacy than 0, contact THK. Note2) Dm epesents the aithmetic aveage of the maximum and minimum s obtained in measuing the beaing oute at two points. Note3) Fo accuacy gades in beaing oute with no values indicated in the table, the highest value among low accuacy gades applies. 11
B Toleance in the Width of the Inne and Oute Rings fo Models RU Unit: μm Models RU Uppe Toleance of B Lowe RU42 0 75 RU66 0 75 RU85 0 75 RU124 0 75 RU148 0 75 RU178 0 100 RU228 0 100 RU297 0 100 RU445 0 150 B1 B B1 B Models RB Models RE Toleance in the Width of the Inne and Oute Rings (Common to All Gades) fo Models RB and RE Nominal dimension of the beaing inne (d) (mm) Toleance of B Applied to the inne ing of RB and the oute ing of RE Toleance of B1 Applied to the oute ing of RB and the inne ing of RE Above O less Uppe Lowe Uppe Lowe 18 30 0 75 0 100 30 50 0 75 0 100 50 80 0 75 0 100 80 120 0 75 0 100 120 150 0 100 0 120 150 180 0 100 0 120 180 250 0 100 0 120 250 315 0 120 0 150 315 400 0 150 0 200 400 500 0 150 0 200 500 630 0 150 0 200 630 800 0 150 0 200 800 1000 0 300 0 400 1000 1250 0 300 0 400 Note) All B and B1 types of models RA and RA-C ae manufactued with toleance between -0.120 and 0. Unit: μm 12
Accuacy Standad of the USP-Gade Seies Examples of Rotational Accuacy of the USP-Gade Seies Coss-Rolle Rings The otation accuacy of the USP-Gade Seies achieves the ulta pecision gade that supasses the wold s highest accuacy standads such as JIS Class 2, ISO Class 2, DIN P2 and AFBMA ABEC9. Radial unout 2μm (standad: 5μm MAX.) Axial unout 2.5μm (standad: 5μm MAX.) 40 φ φ 500 600 Rotational Accuacy of the Inne Ring of Model RB50040CC0USP Axial unout 3μm (standad: 7μm MAX.) 40 φ φ 500 600 Radial unout 2.5μm (standad: 7μm MAX.) Rotational Accuacy of the Oute Ring of Model RE50040CC0USP Accuacy Standads The USP-gade seies of models RU, RB and RE ae manufactued with unout accuacies accoding to Tables below. 13 Runout Accuacies of the USP-gade Seies of Models RU Unit: μm Runout accuacy of the inne ing of model RU Radial unout toleance Axial unout toleance Runout accuacy of the oute ing of model RU Radial unout toleance Axial unout toleance RU 42 2 2 3 3 RU 66 2 2 3 3 RU 85 2 2 3 3 RU124 2 2 3 3 RU148 2 2 4 4 RU178 2 2 4 4 RU228 2.5 2.5 4 4 RU297 3 3 5 5 RU445 4 4 7 7 Runout Accuacies of the USP-gade Seies of Models RB and RE Unit: μm Nominal inne (d) and oute (D) (mm) Above O less Runout accuacy of the inne ing of model RB Radial unout toleance Axial unout toleance Runout accuacy of the oute ing of model RE Radial unout toleance Axial unout toleance 80 180 2.5 2.5 3 3 180 250 3 3 4 4 250 315 4 4 4 4 315 400 4 4 5 5 400 500 5 5 5 5 500 630 6 6 7 7 630 800 8 8
Radial Cleaance Model RU, the standad type of models RB and RE, the USP-gade seies of models RB and RE, and the thin type of models RA and RA-C ae manufactued with adial cleaance accoding to table below. Radial cleaance fo model RU Unit: μm CC0 C0 Stating toque (N m) Radial cleaance (μm) Min. Max. Min. Max. RU42 0.1 0.5 0 25 RU66 0.3 2.2 0 30 RU85 0.4 3 0 40 RU124 1 6 0 40 RU148 1 10 0 40 RU178 3 15 0 50 RU228 5 20 0 60 RU297 10 35 0 70 RU445 20 55 0 100 Note) Model RU cleaance CC0 is contolled by stating toque.stating toque fo cleaance CC0 does not include seal esistance value. Radial Cleaances of Models RB and RE Pitch cicle of the olle (dp) (mm) Unit: μm CC0 C0 C1 Above O less Min. Max. Min. Max. Min. Max. 18 30 8 0 0 15 15 35 30 50 8 0 0 25 25 50 50 80 10 0 0 30 30 60 80 120 10 0 0 40 40 70 120 140 10 0 0 40 40 80 140 160 10 0 0 40 40 90 160 180 10 0 0 50 50 100 180 200 10 0 0 50 50 110 200 225 10 0 0 60 60 120 225 250 10 0 0 60 60 130 250 280 15 0 0 80 80 150 280 315 15 0 30 100 100 170 315 355 15 0 30 110 110 190 355 400 15 0 30 120 120 210 400 450 20 0 30 130 130 230 450 500 20 0 30 130 130 250 500 560 20 0 30 150 150 280 560 630 20 0 40 170 170 310 630 710 20 0 40 190 190 350 710 800 30 0 40 210 210 390 800 900 30 0 40 230 230 430 900 1000 30 0 50 260 260 480 1000 1120 30 0 60 290 290 530 1120 1250 30 0 60 320 320 580 1250 1400 30 0 70 350 350 630 Radial Cleaances of USP-gade Seies of Models RB and RE Unit: μm Pitch cicle of the olle (dp) (mm) CC0 C0 Above O less Min. Max. Min. Max. 120 160 10 0 0 40 160 200 10 0 0 50 200 250 10 0 0 60 250 280 15 0 0 80 280 315 15 0 0 100 315 355 15 0 0 110 355 400 15 0 0 120 400 500 20 0 0 130 500 560 20 0 0 150 560 630 20 0 0 170 630 710 20 0 0 190 Radial Cleaances of Models RA and RA-C Unit: μm Pitch cicle of the olle (dp) (mm) CC0 C0 Above O less Min. Max. Min. Max. 50 80 8 0 0 15 80 120 8 0 0 15 120 140 8 0 0 15 140 160 8 0 0 15 160 180 10 0 0 20 180 200 10 0 0 20 200 225 10 0 0 20 14
Moment Rigidity Figues show moment igidity diagams fo the Coss-Rolle Ring as a sepaate unit. Rigidity is affected by the defomation of the housing, pesse fl ange and bolts. Theefoe, the stength of these pats must be taken into account. (Radial cleaance: 0) 10 4 3 RU85 Gadient angle: ad 2 1 RU124 RU148 RU178 RU228 0 0.05 0.1 RU297 0.15 RU445 0.2 Moment: M (kn m) Model RU 10 4 3 2 1 Gadient angle: ad RA5008 RA6008 RA7008 RA8008 RA9008 RA10008 RA11008 RA12008 RA13008 RA14008 RA15008 0 RA16013 RA17013 RA18013 RA19013 RA20013 0.05 0.1 0.15 0.2 Moment: M (kn m) Model RA 15
10 4 3 Gadient angle: ad 2 1 RB5013 RB6013 RB7013 RB8016 RB9016 RB10020 RB11020 RB12016 RB12025 RB13025 RB14025 RB15025 0 0.1 0.2 0.3 0.4 Moment: M (kn m) Gadient angle: ad 10 4 3 2 1 RB16025 RB18025 RB20035 RB24025 RB25040 RB30040 RB35020 RB40040 RB50025 RB50040 RB60040 0 2 4 6 8 10 Moment: M (kn m) 10 4 1.5 RB70045 RB80070 Gadient angle: ad 1 0.5 RB90070 RB1000110 RB1250110 0 20 40 60 80 Moment: M Model RB 100 (kn m) 16
Model RU (Integated Inne/Oute Ring Type) φ d φ D RU 42 to RU 85 φ d 2-φ d1 geasing hole 2-φ d1 geasing hole φ D RU 124 to RU 445 Shaft Inne Oute Main dimensions Shoulde height Basic load ating (adial) Mass Rolle pitch cicle Width Geasing hole C C 0 d D dp B d 1 min ds Dh (max) (min) kn kn kg 20 RU 42 20 70 41.5 12 3.1 0.6 36 47 7.35 8.35 0.29 35 RU 66 35 95 66 15 3.1 0.6 59 74 17.5 22.3 0.62 55 RU 85 55 120 85 15 3.1 0.6 77 93 20.3 29.5 1 80 RU 124 80 165 124 22 3.1 1 114 134 33.1 50.9 2.6 90 RU 148 90 210 147.5 25 3.1 1.5 133 162 49.1 76.8 4.9 115 RU 178 115 240 178 28 3.1 1.5 161 195 80.3 135 6.8 160 RU 228 160 295 227.5 35 6 2 208 246 104 173 11.4 210 RU 297 210 380 297.3 40 6 2.5 272 320 156 281 21.3 350 RU 445 350 540 445.4 45 6 2.5 417 473 222 473 35.4 Note) Optional gease nipple available fo model RU. (See fi gue below) Please indicate with a -N at the end of the model numbe if equied. φ φ φ φ φ φ NP3.2 3.5 NP6 5 17
PCD2 φ ds PCD1 φ Dh Mounting Hole Related Unit: mm Inne ing Oute ing PCD 1 The uppe section : No symbol, G Mounting hole ( The lowe beth : X ) PCD 2 Mounting hole 28 6-M3 though 57 6-φ3.4 dilled though, φ6.5 counte boe depth 3.3 45 8-M4 though 83 8-φ4.5 dilled though, φ8 counte boe depth 4.4 65 8-M5 though 105 8-φ5.5 dilled though, φ9.5 counte boe depth 5.4 97 10-φ5.5 dilled though, φ9.5 counte boe depth 5.4 148 10-φ5.5 dilled though, φ9.5 counte boe 112 139 184 240 385 10-M5 though 12-φ9 dilled though, φ14 counte boe depth 8.6 12-M8 though 12-φ9 dilled though, φ14 counte boe depth 8.6 12-M8 though 12-φ11 dilled though, φ17.5 counte boe depth 10.8 12-M10 though 16-φ14 dilled though, φ20 counte boe depth 13 16-M12 though 24-φ14 dilled though, φ20 counte boe depth 13 24-M12 though 187 depth 5.4 12-φ9 dilled though, φ 14 counte boe depth 8.6 217 12-φ9 dilled though, φ14 counte boe depth 8.6 270 12-φ11 dilled though, φ17.5 counte boe depth 10.8 350 16-φ14 dilled though, φ20 counte boe depth 13 505 24-φ14 dilled though, φ20 counte boe depth 13 Model numbe coding Symbol No Symbol UU U UT Seal position Without seal RU124 UU CC0 P2 B G -N Seal symbol Coss section of the seal section Seal attached Seal on both ends Seal attached on eithe end Seal (counteboe side of the oute ing) Seal attached on eithe end Seal (opposite to the counteboe side of the oute ing) Radial cleaance symbol CC0 : Minus cleaance (peload) C0 : Plus cleaance Symbol No Symbol G X Option symbol No Symbol : No accessoy -N : Gease nipple attached Mounting Hole Oientation symbol [Available models: RU124 to RU445 (excluding X type)] Inne Ring Mounting Hole Oientation Coss section of the mounting hole Hole The counteboe holes of the inne and oute ings face the same Inne ing diection counteboe hole The counteboe holes of the inne and oute ings face opposite diection Inne ing tapped hole (though hole) - Sub-pat Accuacy symbol No Symbol : Rotational Accuacy of the Inne Ring R : Rotational Accuacy of the Oute Ring B : Rotational Accuacy of the Inne/Oute Rings Accuacy symbol No Symbol(P5) : 5-gade otational accuacy P4 : 4-gade otational accuacy P2 : 2-gade otational accuacy USP : USP-gade otational accuacy 18
Model RB (Sepaable Oute Ring Type fo Inne Ring Rotation) φ d 4-geasing hole φ D B B1 φ ds φ Dh b a Detail view of the geasing hole Shaft Inne Rolle pitch Oute cicle Main dimensions Shoulde height Unit: mm Basic load ating Mass (adial) Width Geasing hole C C 0 d D dp B B 1 a b min ds Dh (max) (min) kn kn kg 20 RB 2008 20 36 27 8 2 0.8 0.5 23.5 30.5 3.23 3.1 0.04 25 RB 2508 25 41 32 8 2 0.8 0.5 28.5 35.5 3.63 3.83 0.05 30 RB 3010 30 55 41.5 10 2.5 1 0.6 37 47 7.35 8.36 0.12 35 RB 3510 35 60 46.5 10 2.5 1 0.6 41 51.5 7.64 9.12 0.13 40 RB 4010 40 65 51.5 10 2.5 1 0.6 46.5 57.5 8.33 10.6 0.16 45 RB 4510 45 70 56.5 10 2.5 1 0.6 51 61.5 8.62 11.3 0.17 50 RB 5013 50 80 64 13 2.5 1.6 0.6 57 72 16.7 20.9 0.27 60 RB 6013 60 90 74 13 2.5 1.6 0.6 67 82 18 24.3 0.3 70 RB 7013 70 100 84 13 2.5 1.6 0.6 77 92 19.4 27.7 0.35 80 RB 8016 80 120 98 16 3 1.6 0.6 88 110 30.1 42.1 0.7 90 RB 9016 90 130 108 16 3 1.6 1 98 118 31.4 45.3 0.75 100 RB 10016 140 119.3 16 3.5 1.6 1 109 129 31.7 48.6 0.83 100 RB 10020 150 123 20 3.5 1.6 1 113 133 33.1 50.9 1.45 RB 11012 135 121.8 12 2.5 1 0.6 117 128 12.5 24.1 0.4 110 RB 11015 110 145 126.5 15 3.5 1.6 0.6 119 136 23.7 41.5 0.75 RB 11020 160 133 20 3.5 1.6 1 120 143 34 54 1.56 120 RB 12016 150 134.2 16 3.5 1.6 0.6 127 141 24.2 43.2 0.72 120 RB 12025 180 148.7 25 3.5 2 1.5 133 164 66.9 100 2.62 130 RB 13015 160 144.5 15 3.5 1.6 0.6 137 152 25 46.7 0.72 130 RB 13025 190 158 25 3.5 2 1.5 143 174 69.5 107 2.82 Note) (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. 19
φ d 4-geasing hole φ D φ ds B B1 φ Dh b a Detail view of the geasing hole Shaft Inne Rolle pitch Oute cicle Main dimensions Shoulde height Basic load ating (adial) Width Geasing hole C C 0 Unit: mm d D dp B B 1 a b min ds Dh (max) (min) kn kn kg 140 RB 14016 175 154.8 16 2.5 1.6 1 147 162 25.9 50.1 1 140 RB 14025 200 168 25 3.5 2 1.5 154 185 74.8 121 2.96 RB 15013 180 164 13 2.5 1.6 0.6 157 172 27 53.5 0.68 150 RB 15025 150 210 178 25 3.5 2 1.5 164 194 76.8 128 3.16 RB 15030 230 188 30 4.5 3 1.5 169 211 100 156 5.3 160 RB 16025 160 220 188.6 25 3.5 2 1.5 173 204 81.7 135 3.14 170 RB 17020 170 220 191 20 3.5 1.6 1.5 184 198 29 62.1 2.21 180 RB 18025 180 240 210 25 3.5 2 1.5 195 225 84 143 3.44 190 RB 19025 190 240 211.9 25 3.5 1.6 1 202 222 41.7 82.9 2.99 RB 20025 260 230 25 3.5 2 2 215 245 84.2 157 4 200 RB 20030 200 280 240 30 4.5 3 2 221 258 114 200 6.7 RB 20035 295 247.7 35 5 3 2 225 270 151 252 9.6 220 RB 22025 220 280 250.1 25 3.5 2 2 235 265 92.3 171 4.1 240 RB 24025 240 300 269 25 3.5 2 2.5 256 281 68.3 145 4.5 RB 25025 310 277.5 25 3.5 2 2.5 265 290 69.3 150 5 250 RB 25030 250 330 287.5 30 4.5 3 2.5 269 306 126 244 8.1 RB 25040 355 300.7 40 6 3.5 2.5 275 326 195 348 14.8 RB 30025 360 328 25 3.5 2 2.5 315 340 76.3 178 5.9 300 RB 30035 300 395 345 35 5 3 2.5 322 368 183 367 13.4 RB 30040 405 351.6 40 6 3.5 2.5 326 377 212 409 17.2 350 RB 35020 350 400 373.4 20 3.5 1.6 2.5 363 383 54.1 143 3.9 Note) (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. Mass 20
Model RB (Sepaable Oute Ring Type fo Inne Ring Rotation) φ d 4-geasing hole B B1 φ D φ ds b φ Dh a Detail view of the geasing hole Shaft Inne Oute Main dimensions Rolle pitch cicle Width Geasing hole d D dp B B 1 a b min Shoulde height ds (max) Dh (min) Unit: mm Basic load ating Mass (adial) C C 0 kn kn kg 400 RB 40035 480 440.3 35 5 3 2.5 422 459 156 370 14.5 400 RB 40040 510 453.4 40 6 3.5 2.5 428 479 241 531 23.5 450 RB 45025 450 500 474 25 3.5 1.6 1 464 484 61.7 182 6.6 RB 50025 550 524.2 25 3.5 1.6 1 514 534 65.5 201 7.3 500 RB 50040 500 600 548.8 40 6 3 2.5 526 572 239 607 26 RB 50050 625 561.6 50 6 3.5 2.5 536 587 267 653 41.7 600 RB 60040 600 700 650 40 6 3 3 627 673 264 721 29 700 RB 70045 700 815 753.5 45 6 3 3 731 777 281 836 46 800 RB 80070 800 950 868.1 70 6 4 4 836 900 468 1330 105 900 RB 90070 900 1050 969 70 6 4 4 937 1001 494 1490 120 1000 RB 1000110 1000 1250 1114 110 6 6 5 1057 1171 1220 3220 360 1250 RB 1250110 1250 1500 1365.8 110 6 6 5 1308 1423 1350 3970 440 Note) (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. Model numbe coding No Symbol Without seal UU Seal attached on both ends RB3010 UU CC0 P5 Seal symbol Symbol Seal position Coss section of the seal section Seal Accuacy symbol No Symbol : Nomal Gade (Gade 0) P6 : 6-gade otational accuacy PE6 : 6-gade otational accuacy + 6-gade dimensional accuacy P5 : 5-gade otational accuacy PE5 : 5-gade otational accuacy + 5-gade dimensional accuacy P4 : 4-gade otational accuacy PE4 : 4-gade otational accuacy + 4-gade dimensional accuacy P2 : 2-gade otational accuacy PE2 : 2-gade otational accuacy + 4-gade dimensional accuacy U Seal attached on eithe end Seal Radial cleaance symbol CC0 : Minus cleaance (peload) C0 : Plus cleaance C1 : Plus cleaance (lage than C0) 21
Model RE (Two-piece Inne Ring Type fo Oute Ring Rotation) φ d 4-geasing hole B1 B φ D φ ds Shaft Inne Oute φ Dh Main dimensions Rolle pitch cicle b a Detail view of the geasing hole Shoulde height Basic load ating (adial) Width Geasing hole C C 0 Unit: mm d D dp B B 1 a b min ds Dh (max) (min) kn kn kg 20 RE 2008 20 36 29 8 2 0.8 0.5 24.5 32.5 3.23 3.1 0.04 25 RE 2508 25 41 34 8 2 0.8 0.5 29.5 37.5 3.63 3.83 0.05 30 RE 3010 30 55 43.5 10 2.5 1 0.6 37.5 48.5 7.35 8.36 0.12 35 RE 3510 35 60 48.5 10 2.5 1 0.6 42.5 53.5 7.64 9.12 0.13 40 RE 4010 40 65 53.5 10 2.5 1 0.6 47.5 58.5 8.33 10.6 0.16 45 RE 4510 45 70 58.5 10 2.5 1 0.6 52.5 63.5 8.62 11.3 0.17 50 RE 5013 50 80 66 13 2.5 1.6 0.6 57.5 73 16.7 20.9 0.27 60 RE 6013 60 90 76 13 2.5 1.6 0.6 68 83 18 24.3 0.3 70 RE 7013 70 100 86 13 2.5 1.6 0.6 78 93 19.4 27.7 0.35 80 RE 8016 80 120 101.4 16 3 1.6 0.6 91 111 30.1 42.1 0.7 90 RE 9016 90 130 112 16 3 1.6 1 100 122 31.4 45.3 0.75 100 RE 10016 140 121.1 16 3 1.6 1 109 131 31.7 48.6 0.83 100 RE 10020 150 127 20 3.5 1.6 1 115 137 33.1 50.9 1.45 RE 11012 135 123.3 12 2.5 1 0.6 117 128 12.5 24.1 0.4 110 RE 11015 110 145 129 15 3 1.6 0.6 122 136 23.7 41.5 0.75 RE 11020 160 137 20 3.5 1.6 1 125 147 34 54 1.56 120 RE 12016 150 136 16 3 1.6 0.6 127 143 24.2 43.2 0.72 120 RE 12025 180 152 25 3.5 2 1.5 135 166 66.9 100 2.62 130 RE 13015 160 146 15 3 1.6 0.6 137 153 25 46.7 0.72 130 RE 13025 190 162 25 3.5 2 1.5 145 176 69.5 107 2.82 Note) (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. Mass 22
Model RE (Two-piece Inne Ring Type fo Oute Ring Rotation) φ d 4-geasing hole B1 B φ D φ ds Shaft Inne Oute φ Dh Main dimensions Rolle pitch cicle b a Detail view of the geasing hole Shoulde height Unit: mm Basic load ating Mass (adial) Width Geasing hole C C 0 d D dp B B 1 a b min ds Dh (max) (min) kn kn kg 140 RE 14016 175 160 16 3 1.6 1 151 167 25.9 50.1 1 140 RE 14025 200 172 25 3.5 2 1.5 154 186 74.8 121 2.96 RE 15013 180 166 13 2.5 1.6 0.6 158 173 27 53.5 0.68 150 RE 15025 150 210 182 25 3.5 2 1.5 164 196 76.8 128 3.16 RE 15030 230 192 30 4.5 3 1.5 173 210 100 156 5.3 160 RE 16025 160 220 192 25 3.5 2 1.5 174 206 81.7 135 3.14 170 RE 17020 170 220 196.1 20 3.5 1.6 1.5 187 204 29 62.1 2.21 180 RE 18025 180 240 210 25 3.5 2 1.5 195 225 84 143 3.44 190 RE 19025 190 240 219 25 3.5 1.6 1 207 229 41.7 82.9 2.99 RE 20025 260 230 25 3.5 2 2 215 245 84.2 157 4 200 RE 20030 200 280 240 30 4.5 3 2 221 258 114 200 6.7 RE 20035 295 247.7 35 5 3 2 225 270 151 252 9.6 220 RE 22025 220 280 250.1 25 3.5 2 2 235 265 92.3 171 4.1 240 RE 24025 240 300 272.5 25 3.5 2 2.5 258 284 68.3 145 4.5 RE 25025 310 280.9 25 3.5 2 2.5 268 293 69.3 150 5 250 RE 25030 250 330 287.5 30 4.5 3 2.5 269 306 126 244 8.1 RE 25040 355 300.7 40 6 3.5 2.5 275 326 195 348 14.8 RE 30025 360 332 25 3.5 2 2.5 319 344 75.5 178 5.9 300 RE 30035 300 395 345 35 5 3 2.5 322 368 183 367 13.4 RE 30040 405 351.6 40 6 3.5 2.5 326 377 212 409 17.2 350 RE 35020 350 400 376.6 20 3.5 1.6 2.5 365 386 54.1 143 3.9 Note) (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. 23
φ d 4-geasing hole B1 φ D B φ ds Shaft Inne Oute φ Dh Main dimensions Rolle pitch cicle b a Detail view of the geasing hole Shoulde height Basic load ating (adial) Width Geasing hole C C 0 Unit: mm d D dp B B 1 a b min ds Dh (max) (min) kn kn kg 400 RE 40035 480 440.3 35 5 3 2.5 422 459 156 370 14.5 400 RE 40040 510 453.4 40 6 3.5 2.5 428 479 241 531 23.5 450 RE 45025 450 500 476.6 25 3.5 1.6 1 465 486 61.7 182 6.6 RE 50025 550 526.6 25 3.5 1.6 1 515 536 65.5 201 7.3 500 RE 50040 500 600 548.8 40 6 3 2.5 526 572 239 607 26 RE 50050 625 561.6 50 6 3.5 2.5 536 587 267 653 41.7 600 RE 60040 600 700 650 40 6 3 3 627 673 264 721 29 Note) (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. Model numbe coding Seal symbol Symbol Seal position Coss section of the seal section No Symbol Without seal UU Seal attached on both ends RE20030 UU CC0 P5 Seal Accuacy symbol No Symbol : Nomal Gade (Gade 0) P6 : 6-gade otational accuacy PE6 : 6-gade otational accuacy + 6-gade dimensional accuacy P5 : 5-gade otational accuacy PE5 : 5-gade otational accuacy + 5-gade dimensional accuacy P4 : 4-gade otational accuacy PE4 : 4-gade otational accuacy + 4-gade dimensional accuacy P2 : 2-gade otational accuacy PE2 : 2-gade otational accuacy + 4-gade dimensional accuacy Mass U Seal attached on eithe end Seal Radial cleaance symbol CC0 : Minus cleaance (peload) C0 : Plus cleaance C1 : Plus cleaance (lage than C0) 24
USP-Gade Models RB and RE φ d 4-geasing hole φ D B B1 φ ds RB-USP RB UU-USP φ d 4-geasing hole φ D B1 RE-USP RE UU-USP Inne Oute B Main dimensions b a Detail view of the geasing hole Rolle pitch cicle dp Width Geasing hole d D RB RE B B1 a b min Shoulde height ds (max) Dh (min) φ Dh Unit: mm Basic load ating Mass (adial) C C0 kn kn kg RB 10020USP 100 150 123 127 20 3.5 1.6 1 113 133 33.1 50.9 1.45 RE 10020USP RB 12025USP RE 12025USP 120 180 148.7 152 25 133 164 66.9 100 2.62 3.5 2 1.5 RB 15025USP 150 210 178 182 25 164 194 76.8 128 3.16 RE 15025USP RB 20030USP RE 20030USP 200 280 240 240 30 2 221 258 114 200 6.7 4.5 3 RB 25030USP 250 330 287.5 287.5 30 269 306 126 244 8.1 RE 25030USP RB 30035USP 300 395 345 345 35 5 3 322 368 183 367 13.4 RE 30035USP 2.5 RB 40040USP 400 510 453.4 453.4 40 6 3.5 428 479 241 531 23.5 RE 40040USP RB 50040USP RE 50040USP 500 600 548.8 548.8 40 526 572 239 607 26 6 3 RB 60040USP 600 700 650 650 40 3 627 673 264 721 29 RE 60040USP Note) If a cetain level of otational accuacy is equied fo the inne ing, select model RB; if a cetain level of otational accuacy is equied fo the oute ing, select model RE. (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. Model numbe coding Seal symbol Symbol Seal position Coss section of the seal section No Without seal Symbol RB50040 UU CC0 USP Accuacy symbol USP : USP-gade otational accuacy Radial cleaance symbol CC0 : Minus cleaance (peload) C0 : Plus cleaance UU Seal attached on both ends Seal U Seal attached on eithe end Seal 25
Model RA (Sepaable Oute Ring Type fo Inne Ring Rotation) φ d 4-geasing hole φ D φ ds B B1 φ Dh b a Detail view of the geasing hole Shaft Inne Oute Main dimensions Rolle pitch cicle Shoulde height Basic load ating (adial) Width Geasing hole C C0 Unit: mm d D dp B B1 a b min ds Dh (max) (min) kn kn kg 50 RA 5008 50 66 57 8 2 0.8 0.5 53.5 60.5 5.1 7.19 0.08 60 RA 6008 60 76 67 8 2 0.8 0.5 63.5 70.5 5.68 8.68 0.09 70 RA 7008 70 86 77 8 2 0.8 0.5 73.5 80.5 5.98 9.8 0.1 80 RA 8008 80 96 87 8 2 0.8 0.5 83.5 90.5 6.37 11.3 0.11 90 RA 9008 90 106 97 8 2 0.8 0.5 93.5 100.5 6.76 12.4 0.12 100 RA 10008 100 116 107 8 2 0.8 0.5 103.5 110.5 7.15 13.9 0.14 110 RA 11008 110 126 117 8 2 0.8 0.5 113.5 120.5 7.45 15 0.15 120 RA 12008 120 136 127 8 2 0.8 0.5 123.5 130.5 7.84 16.5 0.17 130 RA 13008 130 146 137 8 2 0.8 0.5 133.5 140.5 7.94 17.6 0.18 140 RA 14008 140 156 147 8 2 0.8 0.5 143.5 150.5 8.33 19.1 0.19 150 RA 15008 150 166 157 8 2 0.8 0.5 153.5 160.5 8.82 20.6 0.2 160 RA 16013 160 186 172 13 2.5 1.6 0.8 165 179 23.3 44.9 0.59 170 RA 17013 170 196 182 13 2.5 1.6 0.8 175 189 23.5 46.5 0.64 180 RA 18013 180 206 192 13 2.5 1.6 0.8 185 199 24.5 49.8 0.68 190 RA 19013 190 216 202 13 2.5 1.6 0.8 195 209 24.9 51.5 0.69 200 RA 20013 200 226 212 13 2.5 1.6 0.8 205 219 25.8 54.7 0.71 Note) (a) and (b) dimensions of the geasing hole in the detailed diagam ae efeence values. Mass Model numbe coding RA7008 UU CC0 Seal symbol Symbol Seal position Coss section of the seal section No Symbol Without seal Radial cleaance symbol CC0 : Minus cleaance (peload) C0 : Plus cleaance UU Seal attached on both ends Seal U Seal attached on eithe end Seal 26
Model RA-C (Single-Split Type) φ d φ D B 4-φ d0 (Geasing hole) B1 φ ds φ Dh Shaft Inne Oute Main dimensions Rolle pitch cicle Width Geasing hole Shoulde height Basic load ating (adial) C C0 Unit: mm d D dp B B1 d0 min ds Dh (max) (min) kn kn kg 50 RA 5008C 50 66 57 8 1.5 0.5 53.5 60.5 5.1 7.19 0.08 60 RA 6008C 60 76 67 8 1.5 0.5 63.5 70.5 5.68 8.68 0.09 70 RA 7008C 70 86 77 8 1.5 0.5 73.5 80.5 5.98 9.8 0.1 80 RA 8008C 80 96 87 8 1.5 0.5 83.5 90.5 6.37 11.3 0.11 90 RA 9008C 90 106 97 8 1.5 0.5 93.5 100.5 6.76 12.4 0.12 100 RA 10008C 100 116 107 8 1.5 0.5 103.5 110.5 7.15 13.9 0.14 110 RA 11008C 110 126 117 8 1.5 0.5 113.5 120.5 7.45 15 0.15 120 RA 12008C 120 136 127 8 1.5 0.5 123.5 130.5 7.84 16.5 0.17 130 RA 13008C 130 146 137 8 1.5 0.5 133.5 140.5 7.94 17.6 0.18 140 RA 14008C 140 156 147 8 1.5 0.5 143.5 150.5 8.33 19.1 0.19 150 RA 15008C 150 166 157 8 1.5 0.5 153.5 160.5 8.82 20.6 0.2 160 RA 16013C 160 186 172 13 2 0.8 165 179 23.3 44.9 0.59 170 RA 17013C 170 196 182 13 2 0.8 175 189 23.5 46.5 0.64 180 RA 18013C 180 206 192 13 2 0.8 185 199 24.5 49.8 0.68 190 RA 19013C 190 216 202 13 2 0.8 195 209 24.9 51.5 0.69 200 RA 20013C 200 226 212 13 2 0.8 205 219 25.8 54.7 0.71 Mass Model numbe coding RA6008C UU C0 Seal symbol Symbol Seal position Coss section of the seal section No Without seal Symbol Radial cleaance symbol CC0 : Minus cleaance (peload) C0 : Plus cleaance UU Seal attached on both ends Seal U Seal attached on eithe end Seal 27
Fit Fitting of Models RU Fitting fo model RU is typically not equied. Howeve, fo fi tting equiing positioning accuacy, h7 and H7 ae ecommended. Fitting of Models RB, RE and RA Fo the fitting of models RB, RE and RA, we ecommend using the combinations indicated in Table below. Fitting of Models RB, RE and RA Radial cleaance Sevice condition Shaft Housing CC0 Inne ing otational load Nomal load Lage impact and moment Oute ing otational load Nomal load Lage impact and moment g5 H7 C0 Inne ing otational load Nomal load Lage impact and moment h5 H7 Oute ing otational load Nomal load Lage impact and moment g5 Js7 C1 Inne ing otational load Nomal load j5 H7 Lage impact and moment k5 Js7 Oute ing otational load Nomal load g6 Js7 Lage impact and moment h5 K7 Note) Fo the fi tting fo cleaance CC0, avoid intefeence because it will cause an excessive peload. In addition, if highe igidity is equied, we ecommend measuing the inne and oute s of the beaing and applying a slight intefeence fit to match the s. Fitting of the USP-gade Fo the fi tting of the USP-gade seies of models RB and RE, we ecommend using the combinations indicated in Table below. Fitting of the USP-gade Radial cleaance Condition Shaft Housing CC0 Inne ing otational load h5 J7 Oute ing otational load g5 Js7 C0 Inne ing otational load j5 J7 Oute ing otational load g5 K7 Note) It is ecommended that you measue the inside and outside s of the beaing and povide a slight intefeence fi t fo those measuements. Fitting of Model RA-C Fo the fi tting of models RA-C, we ecommend using the combinations indicated in Table below. Fitting of Models RA-C Radial cleaance Condition Shaft Housing CC0 Inne ing otational load h5 J7 Oute ing otational load g5 Js7 C0 Inne ing otational load j5 J7 Oute ing otational load g5 K7 Note) It is ecommended that you measue the inside and outside s of the beaing and povide a slight intefeence fi t fo those measuements. 28
Designing the Housing and the Pesse Flange Since the Coss-Rolle Ring is a compact, thin device, special consideation must be given to the igidity of the housing and the pesse fl ange. With types having a sepaable oute ing, insufficiency in the stength of the housing, pessue flange o the pesse bolt will esult in the inability to evenly hold the inne o oute ing, o the defomation of the Coss-Rolle Ring when a moment load is applied. Consequently, the contact aea of the olles will become uneven, causing pefomance to signifi cantly deteioate. Housing When designing the thickness of the housing, make sue it is at least 60% of the sectional height of the Coss-Rolle Ring as a geneal guide. Housing thickness T= D d 2 0.6 o geate (D: oute of the oute ing; d: inne of the inne ing) If geate stiffness is desied, both the thickness of the housing and the fi tting toleance must be consideed. Please contact THK when making such consideations. [Shoulde Design] When designing the shoulde, ensue that the shaft shoulde (φds) is inside the aceway, and that the housing shoulde height (φdh) ae outside the aceway. If the shoulde appoaches the aceway, then an uneven load may apply, esulting in a faulty otation. Fo the shoulde dimensions, see the coesponding specification table. Raceway φ ds φ Dh Tapped Hole fo Ring Removal By including tapped holes fo inne and oute ing emoval, it becomes possible to emove the ings without damaging the Coss-Rolle Ring. Avoid pushing the inne ing when emoving the oute ing, o vice vesa. T Ring emoval tapped hole Ring emoval tapped hole 29
Level diffeence between the inne and oute ings Since thee is a level diffeence between the inne and oute ings of the Coss-Rolle Ring, it is necessay to povide a cleaance in the housing.the cleaance must be at least twice the toleance A of the width dimension.fo the toleance A of the width dimension, see the accuacy standad (see pages to ). Cleaance Level diffeence Width dimension RB RE B1 0 - A Level diffeence Cleaance RA RA-C B 0 0 -A = B1 - A RU B 0 -A Example of Assembly Figue show examples of installing the Coss-Rolle Ring. Note) Fo models RB and RE, efe to the toleance of the width dimension of B1. Example 1 of assembling model RU Example 2 of assembling model RU d. Inne and oute ings secued in the same diection in the swiveling unit (with seals attached) e. Inne and oute ings secued in the same diection in the swiveling unit (with seals attached) Examples of Assembling Model RU Example of Assembling Model RE Example 1 of assembling model RB Example 2 of assembling model RB a. Oute ing otating in the swiveling unit A heavy body pat is mounted afte the inne and oute ings ae secued. b. Inne ing otating in the swiveling unit (with seals attached) Examples of Assembling Models RE and RB c. Inne and oute ings secued in the same diection in the swiveling unit (with seals attached) 30
Pesse Flange and Pesse Bolt When detemining the thickness of the pesse flange (F) o the cleaance of the flange section (S), efe to the dimensions indicated below as a guide. As fo the numbe of the pesse bolts, the geate the numbe of the bolts, the moe stable the system becomes. As a guide, howeve, it is nomally appopiate to use the numbe of bolts indicated in Table and equidistantly aange them. S H F B F = B 0.5 to B 1.2 0 H = B -0.1 S = 0.5 mm Even if the shaft and the housing ae made of light alloy, it is ecommendable to select a steelbased mateial fo the pesse fl ange. When assembling model RU, use the mounting holes o tapped holes built on the inne and oute ings (model RU does not equie a pesse fl ange). When tightening the pesse bolts, fimly secue them using a toque wench o the like so that they will not loosen. Table shows tightening toques fo the housing and pesse fl anges made of typical steel mateials with medium hadness. Numbe of Pesse Bolts and Bolt Sizes Oute of the oute ing (D) Above O less No. of bolts Unit: mm Bolt size (efeence value) 100 8 o moe M3 to M5 100 200 12 o moe M4 to M8 200 500 16 o moe M5 to M12 500 24 o moe M12 o thicke Scew model No. Bolt Tightening Toque Tightening toque Scew model No. Unit: N-m Tightening toque M3 2 M10 70 M4 4 M12 120 M5 9 M16 200 M6 14 M20 390 M8 30 M22 530 Suface Teatment (1) If the Coss-Rolle Ring equies suface teatment, contact THK. (2) Fo the details of the suface teatment, see the geneal catalog. (3) Note that in the case of standad model RU and special models, it is diffi cult to povide suface teatment to mounting holes built on the inne and oute ings, geasing holes, etc., and a teated film may not be fomed on these aeas. (4) Poduct accuacy (dimensional accuacy, otational accuacy) is only guaanteed pio to suface teatment. 31
Pocedue fo Assembly When assembling the Coss-Rolle Ring, follow the steps below. [Pepaations befoe assembly] (1) Thooughly clean the housing and othe assembly pats, and make sue thee ae no bus. (2) Loosen the bolts that pevent sepaation of the Coss-Rolle Ring. (3) If the two divided pats of the oute o inne ing ae misaligned at the joints, coect the misalignment by gently hitting the ing with a plastic hamme o the like, and then install it. (Fo a type secued with ivets, install it as-is.) [Installing the Coss-Rolle Ring into the Housing o onto the Shaft] Since the Coss-Rolle Ring has a thin-walled stuctue, it is easily tilted duing insetion. Use a plastic hamme o simila tool to level the Coss-Rolle Ring by gadually hammeing the peimete while inseting. Caefully hamme until the sound of the ing coming into full contact with the mounting suface can be veified. Note) When inseting the inne ing, hamme the inne ing. When inseting the oute ing, hamme the oute ing. [Assembly diections fo RU] Model RU has insetion holes fo installing olles in the oute ing. (Fille plugs ae attached.) Position the mounting diection so that the fille plugs do not ovelap with the aea unde maximum load. (The peiphey of the plugged section is slightly ecessed, and a fixing pin is diven into its side.) [Assembly diections fo RA C] The oute ing of model RA C has a slit fo installing olles. Position the mounting diection so that the split section does not ovelap with the aea unde maximum load. (The split section has two small holes on the side maked with the poduct name.) [Attaching the Pesse Flange] (1) Fit the pesse fl ange to the single piece ing (inne ing on models RB/RA, oute ing on model RE). In case of model RU, fit the pesse flange to the otational axis side. (2) Place the pesse fl ange onto the Coss-Rolle Ring. Rock the fl ange seveal times to match the bolt holes. Also in case of model RU, ock the fl ange seveal times to match the bolt holes. (3) Inset the pesse bolts into the holes. Manually tun the bolts and make sue they do not show skewing caused by misalignment of the holes. (4) Fasten the pesse bolts in thee to fou steps fom loose to fully fastened by tightening the bolts in a diamond patten, as shown in Fig. When tightening the sepaated inne o oute ing, ecipocating the single piece oute o inne ing appoximately fou to fi ve times (about 90 ) will coect misalignment between the ing and the body. Tightening Sequence 32
Example of Use 1 Welding obot Device oveview: Robot fo welding wok in automobile manufactuing lines, etc. Location: otation shaft of each joint 2 LCD panel tanspot obot Device oveview: Glass tanspot obot in LCD TV manufactuing lines Location: otation shaft of each joint J5 shaft J3 shaft J6 shaft J4 shaft Uppe joint axis J2 shaft Lowe joint axis J1 shaft 3 Semiconducto wafe tanspot obot Device oveview: Wafe tanspot obot in semiconducto manufactuing lines Location: otation shaft of each joint 4 Vetical machining cente Device oveview: Machine tool (machining cente) Location: Rotation shaft of B and C shafts Z shaft Wist joint axis Pocess chambe Y shaft X shaft C shaft Wafe Elbow joint axis Shoulde joint axis B shaft 33
5 Vetical complex ginde Device oveview: Machine tool (ginde) Location: Rotation shaft of the table 6 Pecision automatic otation stage Device oveview: Pecision otation stage fo measuement instument Location: Rotation shaft of the table Tuet Senso [Rotation shaft] Gindstone Spindle Diving moto Rotation shaft Wokpiece Wom gea unit 7 Boadcast camea Device oveview: Camea obot fo TV boadcast Location: Rotation shafts of the camea tilt shaft and pan shaft 8 DD moto Device oveview: DD moto fo the dive of the semiconducto device Location: Moto otation shaft Tilt shaft (inclination) Pan shaft (pivot) Coil Magnet 34
Pecautions on Use [Handling] (1) Please use at least two people to move any poduct weighing 20 kg o moe, o use a dolly o anothe conveyance. Doing so may cause injuy o damage. (2) The inne and oute ings, which ae compised of two pats, ae held togethe with a special ivet o scews, so install as is. Incoect installation of the space etaine will geatly affect otational pefomance, do not disassemble the Coss Rolle Ring. (3) Take cae not to dop o stike the Coss Rolle Ring. Doing so may cause injuy o damage. Giving an impact to it could also cause damage to its function even if the poduct looks intact. (4) When handling the poduct, wea potective gloves, safety shoes, etc., as necessay to ensue safety. [Pecautions on Use] (1) Pevent foeign mateial, such as cutting chips o coolant, fom enteing the poduct. Failue to do so may cause damage. (2) If the poduct is used in an envionment whee cutting chips, coolant, coosive solvents, wate, etc., may ente the poduct, use bellows, coves, etc., to pevent them fom enteing the poduct. (3) Do not use the poduct at tempeatue of 80 o highe. Exposue to highe tempeatues may cause the esin/ubbe pats to defom/be damaged. (4) If foeign mateial such as cutting chips adhees to the poduct, eplenish the lubicant afte cleaning the poduct. (5) Slight ocking can inhibit the fomation of a film of oil between the olling suface and the aea of contact, esulting in fetting. THK ecommends peiodically otating the coss olle ing seveal times to help ensue that a film foms on the sufaces and olling elements. (6) Do not use undue foce when fi tting pats (pin, key, etc.) to the poduct. This may geneate pemanent defomation on the aceway, leading to loss of functionality. (7) The matching mak of the inne o oute ing may be slightly misaligned when deliveed. In that case, loosen the bolts that secue the inne o oute ing, and coect the alignment using a plastic hamme o the like, befoe installing it to the housing. (Let the secuing ivets follow the housing.) (8) When installing the Coss-Rolle Ring, inset the ing by hammeing the ing that is to be fixed (i.e.hamme the inne ing if the inne ing is to be fi xed, o hamme the oute ing if the oute ing is to be fixed). Hammeing the ing on the wong side may cause damage. (9) Insuffi cient igidity o accuacy of mounting membes causes the beaing load to concentate on one point, and the beaing pefomance will dop signifi cantly. Accodingly, give sufficient consideation to the igidity/accuacy of the housing and base and stength of the fixing bolts. (10)When installing o emoving the Coss Rolle Ring, do not apply foce to the fixing ivets o the bolts. (11)When mounting the pesse flange, take into account the dimensional toleances of the pats so that the flange fi mly holds the inne and oute ings fom the side. [Lubication] (1) Do not mix diffeent lubicants. Mixing geases using the same type of thickening agent may still cause advese inteaction between the two geases if they use diffeent additives, etc. (2) When using the poduct in locations exposed to constant vibations o in special envionments such as clean ooms, vacuum and low/high tempeatue, use the gease appopiate fo the specification/envionment. (3) The consistency of gease changes accoding to the tempeatue. Take note that the toque of the Coss Rolle Ring also changes as the consistency of gease changes. (4) Since each Coss Rolle Ring unit contains high-quality lithium soap goup gease No. 2, initial geasing is not needed. Howeve, the poduct equies egula lubication since it has a smalle intenal space than odinay olle beaings and because the olles need fequent lubication due to thei olling contact stuctue. To eplenish gease, it is necessay to access geasing holes that lead to the oil gooves fomed on the inne and oute ings. As fo the lubication inteval, nomally eplenish the same type of gease so that it is distibuted thoughout the inteio at least evey thee to six months. Set the fi nal lubication inteval/amount based on the actual machine. When the beaing is fi lled up with gease, the initial otational toque tempoaily inceases due to gease esistance. Howeve, suplus gease will un off of the seals and the toque will etun to the nomal level in a shot peiod. The thin type does not have an oil goove. Secue an oil goove in the inne side of the housing fo lubication. 35
[Stoage] When stoing the Coss Rolle Ring, enclose it in a package designated by THK and stoe it in a oom in a hoizontal oientation while avoiding high tempeatue, low tempeatue and high humidity. Afte the poduct has been in stoage fo an extended peiod of time, lubicant inside may have deteioated, so add new lubicant befoe use. [Disposal] Dispose of the poduct popely as industial waste. LIMITED WARRANTY LIMITED WARRANTY AND LIMITATION OF LIABILITY: THK CO. LTD., FOR ITSELF AND ITS RELATED COMPANIES AND SUBSIDIARIES (HEREINAFTER DESCRIBED COLLECTIVELY AS THK ) WARRANTS THAT ALL THK PRODUCTS SOLD WILL BE FREE OF DEFECTS IN MATERIALS AND WORKMANSHIP FOR A PERIOD OF TWELVE (12) MONTHS FROM DATE OF DELIVERY. THE FOREGOING TWELVE (12) MONTH WARRANTY SHALL NOT BE EXTENDED OR CHANGED BY THK FURNISHING ANY REPLACEMENTS, ADDITIONS, ATTACHMENTS, ACCESSORIES OR REPAIRS TO THE PRODUCT SUBSEQUENT TO THE DATE OF DELIVERY OR ACCEPTANCE. THE FOREGOING WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY OF THK REGARDING THE PRODUCT. DISCLAIMER OF OTHER WARRANTIES: OTHER THAN THE FOREGOING WARRANTY, THERE ARE NO EXPRESS OR IMPLIED WARRANTIES OR ANY AFFIRMATIONS OF FACT OR PROMISES BY THK WITH RESPECT TO THE PRODUCT. THK DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, NOT SPECIFICALLY SET FORTH ABOVE. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, THK EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, INFRINGEMENT OR ANY REPRESENTATIONS OF FACT OR QUALITY NOT EXPRESSLY SET FORTH HEREIN. LIMITATION OF LIABILITY AND REMEDIES: THK'S SOLE RESPONSIBILITY AND LIABILITY INCURRED AS A RESULT OF THE SALE AND/OR USE OF THE PRODUCT, AND THE PURCHASER'S EXCLUSIVE REMEDY AGAINST THK UNDER ANY WARRANTY SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT, AT THK'S OPTION, OF PRODUCT COMPONENTS NOT CONFORMING TO THE WARRANTY. THE TOTAL LIABILITY OF THK SHALL IN NO EVENT EXCEED THE AMOUNT ACTUALLY PAID TO THK BY PURCHASER WITH RESPECT TO THE PRODUCT. THIS LIMITATION OF REMEDY IS INTENDED BY THE PARTIES TO SURVIVE EVEN IF THE REMEDY IS CLAIMED TO HAVE FAILED OF ITS ESSENTIAL PURPOSE. PURCHASER'S FULL AND COMPLETE PERFORMANCE OF ALL OBLIGATIONS OF PURCHASER RECITED IN THIS AGREEMENT IS A CONDITION PRECEDENT TO THK'S WARRANTY OBLIGATIONS AND LIABILITIES HEREIN. PURCHASER'S DAMAGES AND LIMITATIONS: IN NO EVENT SHALL THK BE LIABLE TO PURCHASER, ITS ASSIGNS OR AGENTS, FOR ECONOMIC LOSS, INCIDENTAL OR CONSEQUENTIAL DAMAGES, IN CONTRACT OR IN TORT, INCLUDING BUT NOT LIMITED TO, ANY DAMAGES FOR LOST PROFITS, DOWN-TIME, LOST PRODUCTION, FAILURE TO MEET PURCHASER'S SALES CONTRACTS, OR DEFECTS IN PURCHASER'S MATERIALS OR WORKMANSHIP ARISING DIRECTLY OR INDIRECTLY FROM THE USE OF THE PRODUCT. DISCLAIMER This Catalog povides basic infomation elating to THK linea motion and elated poducts. The Catalog, including all infomation, chats, fomulas, factos, accuacy standads, toleances and application ecommendations contained heein, is only a stating point fo the custome s selection of appopiate poducts, and may not apply in all intended applications. The Catalog is not a substitute fo a pope application analysis conducted by an expeienced, knowledgeable design enginee. Poduct selection should be based upon you specific application needs and conditions, which will vay geatly depending on many factos. No specific poduct application should be based solely on the infomation contained in this Catalog. All puchases of THK Poducts ae subject to the limited waanty offeed by THK Co., Ltd, fo itself and on behalf of its elated companies and subsidiaies. Customes should confim independently that a contemplated application is safe, appopiate and effective. "All tademaks used in this Catalog ae egisteed tademaks in the County of Japan. If thee is any question as to the validity of such tademaks outside of Japan, an inquiy should be made in that paticula county." 36
Technical Suppot Site The THK Technical Suppot Site lets you access poduct infomation and technical suppot online. You will also find a seach featue fo locating desied poducts and a calculation featue fo calculating sevice life. 2D-CAD and 3D-CAD data ae also downloadable. http://www.thk.com/ o THK Seach Top page of the Global site Technical Suppot Site http://www.thk.com/ https://tech.thk.com/ Poduct Infomation Seach by model numbe o desciption. Also contains detailed poduct specifications accoding to model numbe. CAD Data You can acquie 2D-CAD data (DXF files) on appoximately 4,000 items, o 3D-CAD data accoding to specifications fom ail lengths to installation of option items. (* To use this sevice, you must log in fist.) Technical Infomation Contains technical infomation, fom application examples to eseach papes. (* To use this sevice, you must log in fist.) Catalog Infomation Ode any of a vaiety of catalogs. You can also view in PDF fomat. (* To use this sevice, you must log in fist.) Technical Calculation Rated life (life time) can be calculated simply by enteing model numbe, application citeia, etc. (* To use this sevice, you must log in fist.) FAQ Contains fequently asked questions. 37