JF-700双金属轴承

JF-700 bimetal bearing is a product made of steel plate as the base and sintered CuPb30 material on the surface. Due to the high lead content, the product has good anti-seize and foreign body burial. The working surface needs to be plated with soft alloy material, which can be used as the main bearing, connecting rod bushing, rocker arm bushing of high-speed, medium-low load internal combustion engine; oil pump side friction plate.

code		JF-700
Material		Carbon steel+CuPb30
Max dynamic load N/mm²		25
Maximum line speed m/s	Grease lubrication	2.5
Alloy layer hardness HB		30-45
Maximum PV N/mm² · m/s	Grease lubrication	2.8
Maximum PV N/mm² · m/s	oil lubrication	10
friction coefficient u	Grease lubrication	0.05~0.15
friction coefficient u	oil lubrication	0.04~0.12
Max temperature °C	Grease lubrication	170
Max temperature °C	oil lubrication	250
Matching shaft diameter	Hardness HRC	≥45
Matching shaft diameter	Roughness Ra	0.32~0.63
Thermal Conductivity W/mk		60
Linear expansion coefficient (axial)		18✕10^-6 /k

At present, the product has been applied to the main bearing bush, connecting rod bushing, rocker arm bushing of high-speed, medium and low load internal combustion engine; friction plate on the oil pump side.