SF-2 (black) carbon steel base boundary self-lubricating bearing

SF-2 boundary lubrication bushing is based on a composite material with 3 firmly bonded layers:steel as backing., intered bronze spherical powder as inter layer and modified POM as lining layer. It has oil pocket for oil lubrication. It fits well for slow

SF-2 product parameters

Grade   SF-2(black)
Material   Steel+Bronze+(POM)
Load capacity Static load N/mm2 140
Dynamic load N/mm2 70
Max line speed m/s Grease lubrication               2.5
PVvalue limit N/mm2 · m/s 2.8
Friction coef μ 0.06~0.12
Mating shaft Hardness HB >270
Roughness Ra 0.4~1.25
Working temperature°C -60~+120
Thermal conductivity W/mk 52
Coefficient of linear expansion   11×10 -6/K

 

 

Typical application

Products have been widely used in sliding parts of various machinery, such as printing presses, elevators, textile machines, tobacco machines, fitness equipment, hydraulic trucks, micro motors, solenoid valves, automobiles, motorcycles and agricultural and forestry machinery.

Product Category