Metallographic pictures
1:PTFE＆Fiber mix
2:Cu90Sn10
3:Copper back
4:Anodized coating-Cu/Sn/Zinc
WGB-2S Lead Free Marginal Bearing
WGB-2S Lead Free Marginal Bearing,It is an improved product of WGB-2, with a steel back as the matrix, sintered spherical tin bronze powder in the middle, and a polymer material that is rolled with acetal resin on the surface and contains lipophilic fibers and special lubricants. The same product abroad is the DS bearing, which is suitable for dry friction and low lubrication occasions working under normal temperature conditions. It has the advantages of low friction coefficient, good wear resistance and no oil lubrication.
Tech. Data
|
Performance |
Data |
|
| Max. load P | Static | 250N/mm² |
| Dynamic | 140N/mm² | |
| Max. speed V | Grease lubrication | 2.5m/s |
| Max. PV | Grease lubrication | 2.8N/mm²?m/s |
| Friction coefficient μ | Grease lubrication | 0.05~0.25 |
| Temp. | -40℃～+130℃ | |
| Thermal conductivity | 4W/m?K | |
| Coefficient of thermal expansion | 12×10-6/K |
