PPMF 121412
PTFE polyamide flanged bushingSKF PTFE polyamide flanged bushings are suitable for oscillating, rotating and linear movements, and can accommodate radial loads as well as axial loads in one direction. They provide a cost-effective, self-lubricating solution, and are designed for dry sliding operations. Despite their thin-walled design, they are wear-resistant and can accommodate moderate loads. Their compact design provides good heat dissipation, therefore enabling relatively high sliding velocities.
- Maintenance-free operation
- Cost-effective
- Excellent corrosion resistance
- Electrically insulating
Description
| Material | PTFE polyamide |
| Operating temperature | min. -30 °C |
| Operating temperature | max. 110 °C |
Dimensions
| d | 12 mm | Bore diameter |
|---|---|---|
| D | 14 mm | Outside diameter |
| B | 12 mm | Width |
| D1 | 20 mm | Outside diameter flange |
| B1 | 1 mm | Width flange |
Recommended fits
| Tolerance shaft | h9 |
| Tolerance housing | H7 |
Calculation data
| Specific dynamic load factor | K | 40 N/mm² |
|---|---|---|
| Specific static load factor | K0 | 80 N/mm² |
| Permissible sliding velocity | v | max. 1 m/s |
| Coefficient of friction | µ | min. 0.06 |
| Coefficient of friction | µ | max. 0.15 |
Mass
| Mass bushing | 0.000975 kg |
Tolerances and clearances
Bushing data
Design of bushing arrangements
