Mô tả
Dimensions
| Ø d1 | 8,0 mm |
| Ø d2 | 9,6 mm |
| Flange diameter d3 | 12,0 mm |
| b1 Total length | 8,00 mm |
| b2 | 0,8 mm |
| B | 8,00 mm |
Production and installation tolerances
| d1-Tolerance bearing | +0.025 +0.075 mm |
| Housing bore tolerance | H9 |
| d3-Tolerance | ±0.40 mm |
| b1-Tolerance | -0.40 mm |
| b2-Tolerance | -0.13 mm |
| Housing bore (max.) | 9,636 mm |
| Housing bore (min.) | 9,600 mm |
| Shaft size (max.) | 8,000 mm |
| Shaft size (min.) | 7,975 mm |
General properties
| Material | iglidur® M250 |
| Density | 1.14 g/cm3 |
| Color | anthracite |
| Max. moisture absorption (at 23 °C/73 °F, 50% r.h.) | 1.4 Wt.-%, test method DIN 53495 |
| Max. water absorption | 7.6 Wt.-% |
| Coefficient of sliding friction, dynamic, against steel | 0.18 – 0.40 μ |
| pv value, max. (dry) | 0.12 MPa ⋅ m/s |
| Radioactive radiation max. | 1 ⋅ 104 Gy |
Mechanical properties
| Modulus of elasticity | 2,700 MPa, test method DIN 53457 |
| Flexural strength (at 20 °C/68 °F) | 112 MPa, test method DIN 53452 |
| Pressure load | 52 MPa |
| Shore-D Hardness | 79, test method DIN 53505 |
| Max. recommended surface pressure (at +20 °C/68 °F) | 20,0 MPa |
| Maximum running speed, linear, short-term | 5,0 m/s |
| Maximum running speed, rotating, continous | 0,8 m/s |
| Maximum running speed, rotating, short-term | 2,0 m/s |
| Maximum running speed, oscillating, continous | 0,6 m/s |
| Maximum running speed, oscillating, short-term | 1,4 m/s |
| Maximum running speed, linear, continous | 2,5 m/s |
Physical and thermal properties
| Max. long-term application temperature | 80 °C |
| Max. short-term application temperature | 170 °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) | 10 K-1 ⋅ 10-5, test method DIN 53752 |
| Max. long-term application temperature | 70°C up to 90°C |
Electrical properties
| Specific volume resistance | > 1013 Ωcm, test method DIN IEC 93 |
| Surface resistance | > 1011 Ω, test method DIN 53482 |
