antifriction pM parts
The antifriction PM parts are used mainly as self-lubricating sliding bearings. The availability of certain amount of graphite and open pores filed with mineral oil in the structure of the parts increase the wear resistance and the loading capacity. This feature of the antifriction PM parts accounts for their very low friction coefficient.
The advantages of the antifriction PM parts are minimized consumption of lubricants, quiet operation, and possibility for low and high-speed operation.
Types of antifriction PM parts according to their form
| Outer diameter | 4 to 180 mm | Accuracy IT 8 |
| Internal diameter | 2 to 170 mm | Accuracy IT 7 |
| Length | 3 to 50 mm | Accuracy +/- 0.5 IT 11 |
Flanged bearing bushes
| Outer flange diameter | 5 to 180 mm | Accuracy IT 8 |
| Outer bush diameter | 4 to 180 mm | Accuracy IT 8 |
| Internal diameter | 2 to 170 mm | Accuracy IT 7 |
| Flange thickness | 1.5 to 45 mm | Accuracy +/- 0.5 IT 11 |
| Length | 3 to 50 mm | Accuracy +/- 0.5 IT 11 |
| Sphere diameter | 8 to 22 mm | Accuracy IT 9 |
| Outer diameter | 7.7 to 21 mm | |
| Internal diameter | 3 to 12 mm | Accuracy IT 7 |
| Length of cyl. section | 2 to 7 mm | |
| Length | 6 to 15 mm | Accuracy +/- 0.5 IT 11 |
| Density | From 5.8 to 6.5 x 103 kg/m3 |
| Porosity | > 18% |
| Radial compression strength | From 170 to 450 MPa |
| Density | From 6.2 to 7.0 x 103 kg/m3 |
| Porosity | > 18% |
| Radial compression strength | From 120 to 230 MPa |
· Agricultural engineering
· Office appliances (bearings in copy machines and microprocessor fans)
· Electrical engineering (bearings in the motors of household appliances)