JF-720 Bimetal BearingsZhejiang Fengli Drive Technology Co., Ltd.


JF-720 Bimetal Bearings is based on steel plate, the surface sintered CuPb24Sn4 alloy Material products. The product has good fatigue strength and load carrying capacity. Applicable to medium-speed medium load. Oil sliding occasions.
Surface plating soft alloy, can be used for high-speed internal combustion engine bearings, connecting rod bushings, to achieve good wear resistance, fatigue effect.

Technical Parameters

Data Code jf-720
Material Steel+CuPb24Sn4
Applications   Products applicable to high-speed, heavy-duty internal combustion engine shaft and gears.
Max Load Capacity P N/mm²   120
Max Line Speed V Grease Lubrication m/s 2.5
Fluid Lubrication m/s 10
PV Value Limit Grease Lubrication m/s N/mm²·m/s 2.8
Fluid Lubrication m/s N/mm²·m/s 10
Friction Coefficient u Grease Lubrication 0.05~0.15
Fluid Lubrication 0.04~0.12
Mating Axis Hardness HRC ≥48
Roughness Ra 0.32~0.63
Working Temperature℃ Grease Lubrication 150
Fluid Lubrication 250
Alloy Layer Hardness HB   45~70
Thermal Conductivity W/mk   60
Coefficient Of Linear Xpansion   19×10-6/K
In addition to the standard products shown in the catalog, you can also provide non-standard products or order according to customer requirements.