PCM 140145120 E
PTFE composite straight bushingSKF PTFE composite straight (cylindrical) bushings are suitable for oscillating, rotating and linear movements, and can accommodate radial loads. Despite their thin-walled design, they can accommodate heavy loads. They also provide good heat dissipation, therefore enabling relatively high sliding velocities.
- Maintenance-free operation
- Cost-effective with long service life
- High operating temperatures
- High load carrying capacity
- High sliding velocity and small operating clearance
Description
| Material | PTFE composite |
| Operating temperature | min. -200 °C |
| Operating temperature | max. 250 °C |
Dimensions
| d | 140 mm | Bore diameter |
|---|---|---|
| D | 145 mm | Outside diameter |
| B | 120 mm | Width |
| c1 | min. 0.2 mm | Length chamfer bore – axial direction |
| c1 | max. 1 mm | Length chamfer bore – axial direction |
| c2 | min. 0.8 mm | Length chamfer outside diameter – axial direction |
| c2 | max. 1.6 mm | Length chamfer outside diameter – axial direction |
Recommended fits
| Tolerance shaft | h8 |
| Tolerance housing | H7 |
Calculation data
| Basic dynamic load rating, radial direction | C | 1 340 kN |
|---|---|---|
| Basic static load rating, radial direction | C0 | 4 150 kN |
| Specific dynamic load factor | K | 80 N/mm² |
| Specific static load factor | K0 | 250 N/mm² |
| Factor depending on material and bearing type | KM | 480 |
| Permissible sliding velocity | v | max. 2 m/s |
| Coefficient of friction | µ | min. 0.03 |
| Coefficient of friction | µ | max. 0.25 |
Mass
| Mass bushing | 1 kg |
Tolerances and clearances
Bushing data
Design of bushing arrangements
