PCMF 303426 E
PTFE composite flanged bushingSKF PTFE composite flanged bushings are suitable for oscillating, rotating and linear movements, and can accommodate radial loads as well as axial loads in one direction. 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 | 30 mm | Bore diameter |
|---|---|---|
| D | 34 mm | Outside diameter |
| B | 26 mm | Width |
| D1 | 42 mm | Outside diameter flange |
| B1 | 2 mm | Width flange |
| c1 | min. 0.1 mm | Length chamfer bore – axial direction |
| c1 | max. 0.7 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 |
| r | max. 2 mm | Radius flange/bushing outside diameter |
Recommended fits
| Tolerance shaft | f7 |
| Tolerance housing | H7 |
Calculation data
| Basic dynamic load rating, radial direction | C | 54 kN |
|---|---|---|
| Basic static load rating, radial direction | C0 | 170 kN |
| Basic dynamic load rating, axial direction | Ca | 29 kN |
| Basic static load rating, axial direction | C0a | 91.5 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 | 0.045 kg |
Tolerances and clearances
Bushing data
Design of bushing arrangements
