Description
Dimensions
| Ø d1 | 20,0 mm |
| Outer diameter d2 | 25,0 mm |
| Bearing length b1 | 20,00 mm |
| Bevel angle [°] | 30,00 ° |
| Length of bevel f4 | 0,5 mm |
| Bevel angle f4 [°] | 30,00 ° |
Production and installation tolerances
General properties
| Density | 1.46 g/cm3 |
| Color | matt grey |
| Max. moisture absorption (at 23 °C/73 °F, 50% r.h.) | 0.7 Wt.-%, test method DIN 53495 |
| Max. water absorption | 4.0 Wt.-% |
| Coefficient of sliding friction, dynamic, against steel | 0.08 – 0.15 μ |
| pv value, max. (dry) | 0.42 MPa ⋅ m/s |
| Radioactive radiation max. | 3 ⋅ 102 Gy |
| CO2 equivalent per piece | 0,00000 kg |
Mechanical properties
| Modulus of elasticity | 7,800 MPa, test method DIN 53457 |
| Flexural strength (at 20 °C/68 °F) | 210 MPa, test method DIN 53452 |
| Pressure load | 78 MPa |
| Shore-D Hardness | 81, test method DIN 53505 |
| Max. recommended surface pressure (at +20 °C/68 °F) | 80,0 MPa |
| Maximum running speed, oscillating, short-term | 1,4 m/s |
| Maximum running speed, rotating, continous | 1,0 m/s |
| Maximum running speed, rotating, short-term | 2,0 m/s |
| Maximum running speed, oscillating, continous | 0,7 m/s |
| Maximum running speed, linear, continous | 4,0 m/s |
| Maximum running speed, linear, short-term | 5,0 m/s |
| Wear limit | 0,2 mm |
Physical and thermal properties
| Max. long-term application temperature | 130 °C |
| Max. short-term application temperature | 220 °C |
| Lower application temperature | -40 °C |
| Heat conductivity | 0.24 W/(m ⋅ K), test method ASTM C 177 |
| Thermal expansion coefficient (at 23°C/73°F) | 9 K-1 ⋅ 10-5, test method DIN 53752 |
Electrical properties
| Specific volume resistance | > 1013 Ωcm, test method DIN IEC 93 |
| Surface resistance | > 1011 Ω, test method DIN 53482 |
