This material consists of a copper-tin-lead alloy sintered onto a steel backing, and the bearing surface is a mixture of polytetrafluoroethylene resin (PTFE), lead/tin and a special filler. The bearing exhibits excellent durability under boundary and fluid lubrication conditions and has good sliding characteristics due to the PTFE/lead/tin mixture, special filler, strength of the metal material and dimensional stability.
Gear pumps
Specific Load MPa | Sliding Speed m/min | Service temp. Range °C (Min. to Max.) | Friction Coefficient μ | Tolerance of Foreign Particles | ||
---|---|---|---|---|---|---|
Normal | Max | Normal | Max | |||
Below 49.0 | 137 | Below 180 (Boundary lubrication) | 240 (Boundary lubrication) | -200 ~ 280 | 0.01~0.1 (Boundary lubrication) | Medium |
Structure | Sliding Layer Component | Wear Resistance | Load Resistance | ||||
---|---|---|---|---|---|---|---|
No Lubrication | Grease | Boundary and Fluid | No Lubrication | Grease | Boundary and Fluid | ||
With steel backing | PTFE+α | 4 | 4 | 5 | 4 | 4 | 5 |
Tolerance of Foreign Particles | Sliding Speed | Friction Coefficient | Effect of Various Atmospheres | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
No Lubrication | Grease | Boundary and Fluid | No Lubrication | Grease | Boundary and Fluid | In Air | In Vacuum | In Water | In Vapor | In Acid or Alkali | |
4 | 3 | 3 | 5 | 4 | 4 | 5 | 5 | 5 | 3 | 3 | 3 |
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