ZHEJIANG TOP BEARINGS CO., LTD.
YOUR TOP PARTERNER FOR PLAIN BEARINGS and ROLLING BEARINGS.
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Bimetal Bearings , Low Carbon Steel Wth CuPb24Sn
CuPb24Sn Bimetal Bearings is backed with high quality low carbon steel with Tin-Lead-Bronze alloy (CuPb24Sn) sintered on its surface. To effectively decrease abrasion, CuPb24Sn Bimetal Bearings' alloy surface can be machined with oil grooves for easier oil storage. When necessary, an erosion protection coating can be plated on the steel back. In common application, CuPb24Sn Bimetal Bearings is used to make wrapped bushes, thrust washer and bushes on connecting rod level of gas engine, etc.
Physical and Mechanical Performance
| Performance Index | Data | Performance Index | Data | ||
| Max. Load | 130N/mm² | Mating Axis | Hardness | ≥45 HRC | |
| Linear Velocity | Grease Lubrication | 2.5 m/s | Roughness | Ra=0.16~0.63 | |
| Oil Lubrication | 10 m/s | Max. Working Temperature | Grease Lubrication | 150℃ | |
| Max. PV value | Grease Lubrication | 2.8N/mm²·m/s | Oil Lubrication | 250℃ | |
| Oil Lubrication | 10N/mm²·m/s | Friction Coefficient | 0.05~0.15 | ||
| Anti-tensile Strength | 170 N/mm² | Heat-conducting Coefficient | 60 W/(m*k) | ||
| Alloy hardness | HB 40-60 | Heat-expansion Coefficient | 19*10^-6k | ||
Alloy Chemical Compositions
| Content | Cu | Pb | Sn | Zn | P | Fe | Ni | Sb | Others |
| Remainder | 9-27 | 0.6-2 | 0.5 | 0.1 | 0.7 | 0.5 | 0.2 | 0.5 |
