Production Description:

WZB SF-2 boundary lubrication bushing is based on a composite material with 3 firmly bonded layers : steel as backing , sintered bronze spherical powder as interlayer and modified POM. as lining layer. It fits well for low speed, heavy duty and normal teperature and saves cost and prolongs working life when replacing normal all copper sleeves. It is widely applied in auto chassis forging machine, metallurgical and mining machine, civil engineering, power atation, striprolling industries etc.

WZB SF-2Y non-lead boundary lubrication bearing is improved on the basis of SF-2X. It can be applied to the field where non-lead is required. Now it's widely used in textile machines, auto operating parts and other middle speed, middle load and grease lubrication occasions.
Load capacity：70N/mm2
Temperature：-40~+130°C
Speed limit：2.5m/s
Friction coef(u)：0.05~0.25
PV limit (Dry)：2.8N/mm2 . m/s
PV limit (Oil)：22N/mm2 . m/s