ZY-2 Prelubricated Bearings Series > ZY-2X Marginal-Lubrication Bearing
ZY-2X Marginal-Lubrication Bearing
ZY-2X boundary lubrication bushing is based on a composite material with 3 firmly bonded layers:steel as backing.sintered bronze sphericalpowder as interlayer and modified POM as lining layer,it fits well for low speed,heavy duty and normal temperature 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 station,strip rolling industries,etc.
- POM 0.03-0.50mm, anti abrasion, low friction coefficient even no oil given. The inside of the bearing are full ofindentions, which need to be filled with grease before installing.
- Bronze powder layer, 0.2-0.35mm, high load capacity and anti-abrasion, good thermal conductivity, which also further strengthen the combination of the POM layer and steel plate.
- Low carbon steel, which improved, load capacity & thermal conductivity.
- Copper/Tin plating layer, 0.002mm, anti-corrosion.
Material Structure
| Max load | Static Load | 250N/mm2 | Operation temp. | -40℃~＋130℃ | ||
|---|---|---|---|---|---|---|
| Low-speed Rotation | 140N/mm2 | max linear velocity | Grease lubrication | 2m/s | ||
| Rotation、Oscillation | 70N/mm2 | Keep to supplying oil | >2m/s | |||
| Max PV | 3N/mm2.m/s | Thermal Conductivity | 4W(m.K)-1 | |||
| Friction coefficient | 0.05~0.20 | |||||
| Coefficient of thermal expansion | 11x10-6K | |||||
Appliation
- The product can be used under high load with low speed, rotation, oscillation, and also can be applied in no liquid lubricants environment that switches frequently with load; the part can work with out oil, and will have a long operating life if oil giver; the POM layer can be machined during installing, which does benefit to the mating.
- The products now mainly used in metallurgy machine mine industry, irrigation machine, agriculture machine etc.