iglide H Can be used underwater For high temperatures Resistant to chemicals High load capabilities

Transcription

1 Can be used underwater For high temperatures Resistant to chemicals igh load capabilities 369

2 - Universal igh temperature and chemical resistance Underwater applications Suitable for temperatures up to 392 F. Very low coefficients of friction when used with hardened shafts. Maintenance-free For high temperatures Suitable for underwater applications When high temperature resistance is necessary For high mechanical loading For applications in contact with chemicals Resistant to chemicals When extremely high wear resistance underwater is needed 370 When universal resistance to chemicals is needed T500 For the maximum pressure at higher temperatures T500 Z vailable from stock Detailed information about delivery time online. F max F min. 40 F $ Price breaks online No minimum order. mm Ø 3 to 70 mm more dimensions on request Typical application areas Offshore Marine engineering Beverage technology Medical Mechatronics 370 Lifetime calculation, configuration and more

3 - Technical Data Material Properties Table General Properties Unit Testing Method Density g/cm Color gray Max. moisture absorption at 73 F / 50% r.h. % weight 0.1 DIN Max. moisture absorption % weight 0.3 Coefficient of friction, dynamic against steel µ pv value, max. (dry) psi x fpm 39,000 Mechanical Properties Modulus of elasticity psi 1,813,000 DIN Tensile strength at 68 F psi 25,380 DIN Compressive strength psi 11,750 Permissible static surface pressure (68 F) psi 13,050 Shore D-hardness 87 DIN Physical and Thermal Properties Max. long-term application temperature F 392 Max. application temperature, short-term F 464 Min. application temperature F -40 Thermal conductivity W/m x K 0.60 STM C 177 Coefficient of thermal expansion K -1 x DIN Electrical Properties Specific volume resistance Ωcm < 10 5 DIN IEC 93 Surface resistance Ω < 10 2 DIN Compressive Strength The graph shows the elastic deformation of for radial loads. t the recommended surface pressure of 13,050 psi, the deformation is approximately 2.5% at room temperature. Compressive strength, Page 63 Deformation (%) ,626 7,252 10,880 14, F 73 F Deformation under load and temperature 14,500 1,450 Permissible Surface Speeds is suitable for continuous running speeds of 196 fpm (rotating) to 590 fpm (linear). Linear movements allow higher running speeds since a larger area of the shaft contributes to cooling. Surface speed, Page 64 pv value, Page Surface Speed (fpm) Permissible pv value for running dry against a steel shaft, at 68 F ,969 Continuous Short Term fpm fpm Rotating Oscillating Linear Maximum surface speeds 3D-CD files, prices and delivery time 371

4 - Technical Data Temperatures 23,210 is an extremely temperature-resistant material. With a 20,310 maximum permissible short-term temperature of 464 F, plain 17,400 bearings may be used in applications with high heat at low loads. 14,500 With increasing temperatures, the compressive strength of 11,600 plain bearings decreases. The graph to the right shows this 8,702 relationship. The ambient temperatures prevalent in the bearing 5,802 system also have an effect on the bearing wear. 2,901 0 pplication temperatures, Page Temperature ( F) Recommended permissible maximum static surface pressure of as a result of the temperature pplication Temperature Minimum - 40 F Max. long-term +392 F Max. short-term +464 F dditional axial securing +248 F Temperature limits for Friction and Wear Both the wear rate and the coefficient of friction values change depending on the pressure. Interestingly, the coefficient of friction µ lowers slightly with the increase of surface speed at constant load. See charts below. Coefficients of friction and surfaces, Page 68 Wear resistance, Page Coefficient of friction (µ) Coefficient of friction (µ) Surface Speed (fpm) Coefficients of friction for as a result of the surface speed; p =108 psi Coefficients of friction for as a result of the load, v =1.97 fpm Coefficient of Friction Dry Grease 0.09 Oil 0.04 Water 0.04 Coefficients of friction for against steel (Shaft finish = 40 rms, 50 RC) 372 Lifetime calculation, configuration and more

5 - Technical Data Shaft Materials The graphs show results of testing different shaft materials with plain bearings made of. The results clearly show that in rotating and oscillating applications the correct shaft selection is critical. For rotating applications, shafts made of 1050 hardened, ground steel and R Carbon steel show the best wear values, the 304 stainless steel shaft is best suited for oscillating movements. lso, hard chromed shafts with bearings are only recommended for low loads. If the shaft material you plan to use is not contained in this list, please contact us. Shaft Materials, Page 71 Wear (µm/km) steel ard chromed Oscillating 304 Stainless steel Rotating R carbon steel Wear for oscillating and rotating applications with different shaft materials p = 290 psi 6 Wear (µm/km) ard anodized aluminum utomatic screw steel 1050 Wear of, rotating application with different shaft materials, p=108 psi, v=98 fpm 1050, hard chromed R Carbon Steel 304 Stainless 440B Wear (µm/km) Steel R carbon steel 304 Stainless ard chromed Wear of with different shaft materials in rotating applications Installation Tolerances plain bearings are oversized before being pressfit. fter proper installation into a recommended housing bore, the inner diameter adjusts to meet our specified tolerances. Please adhere to the catalog specifications for housing bore and recommended shaft sizes. This will help to ensure optimal performance of plain bearings. Tolerance table, Page 75 Testing methods, Page 76 For Inch Size Bearings Length Tolerance (b1) Length (inches) Tolerance (h13) (inches) Length of Chamfer (f) Based on d to / f =.012 d to / to / to / to / to / f =.019 d 1 > f =.031 d 1 > f =.047 d 1 > 1.18 For Metric Size Bearings f 30 Length of chamfer b (0.5 mm) Length 30 Length Tolerance (b1) Length (mm) Tolerance (h13) (mm) Length of Chamfer (f) Based on d1 1 to 3-0 /-140 f = 0.3 d mm > 3 to 6-0 /-180 f = 0.5 d 1 > 6-12 mm > 6 to 10-0 /-220 f = 0.8 d 1 > mm >10 to 18-0 /-270 f = 1.2 d 1 > 30 mm >18 to 30-0 /-330 >30 to 50-0 /-390 >50 to 80-0 /-460 3D-CD files, prices and delivery time 373

6 - Technical Data Chemical Resistance plain bearings have a good chemical resistance. Even aggressive chemicals can act as lubricants. Plain bearings made of are not resistant to hot, oxidizing acids. The moisture absorption of iglide plain bearings is below 0.1% in standard atmosphere. The saturation limit in water is 0.3%. does not swell and therefore is very well suited for use in wet surroundings Chemical table, Page 1364 Medium Resistance lcohol + ydrocarbon + Greases, oils without additives + Fuels + Weak acids + to 0 Strong acids + to Weak alkaline + Strong alkaline + + resistant, 0 conditionally resistant, not resistant Chemical resistance of ll data given concerns the chemical resistance at room temperature (68 F). For a complete list, see Page 1364 Radiation Resistance plain bearings are resistant to radiation up to an intensity of 2 x 10 2 Gy. They also withstand neutron and gamma particle radiation. UV Resistance plain bearings are only conditionally resistant against UV radiation. Under the effects of weathering, the surface of becomes rougher, and the compressive strength of the material decreases. Vacuum For use in a vacuum environment, it must be taken into account that a small amount of moisture is released as vapor. Electrical Properties plain bearings are electrically conducting. Specific volume resistance Surface resistance < 10 5 Ωcm < 10 2 Ω Electrical properties of 374 Lifetime calculation, configuration and more

7 - Product Range Sleeve bearing - Metric 30 d2 Order key Type Dimensions S M Dimensions according to ISO and special dimensions *Based on steel housing bore f b1 d1 0.5 mm 30 For tolerance values please refer to page 373 material Form S (sleeve) Metric Inner-Ø d1 (mm) Outer-Ø d2 (mm) Length b1 (mm) Part Number d1 d2 b1 I.D. fter Pressfit* ousing Bore Shaft Size h13 Min. Max. Min. Max. Min. Max. SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM D-CD files, prices and delivery time 375

8 R - Product Range Flange bearing - Metric 30 d2 d1 Order key Type Dimensions F M f Dimensions according to ISO and special dimensions *Based on steel housing bore b1 b2 r d3 r = max. 0.5 For tolerance values please refer to page 373 material Form F (flange) Metric Inner-Ø d1 (mm) Outer-Ø d2 (mm) Length b1 (mm) Part Number d1 1) d2 d3 b1 b2 I.D. fter Pressfit* ousing Bore Shaft Size d13 h Min. Max.. Min. Max. Min. Max. FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM FM Lifetime calculation, configuration and more