ZY-2 Prelubricated Bearings Series > ZY-2Y Lead-free boundary lubrication bearings
ZY-2Y Lead-free boundary lubrication bearings
ZY-2Y Non-lead boundary lubrication bearing is improved on the basis of ZY-2Y.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.
- POM 0.03-0.50mm, anti abrasion, low friction coefficient even no oil given. The inside of the bearing are full of indentions, 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.