2. Detailed Product Pictures

3.Product Advantages

-Genuine Parts Quality

- 100% Same Original Parts Finishing

- OEM Standard

4. FAQs

Q: What is your service process?

A:Please use the contact form down below to send us inquiry. We will get back to you in the next 8 hours and confirm the parts you need and quote you prices.

Q: Which shipping term you can supply?
A: By sea, air or by express ( DHL, Fedex, TNT, UPS, EMS)

Q: When we will ship out your order?

A: We will ship out the products in 24 hours after receiving your payment if the product is in stock.

Lubrication of piston rings is difficult and has been a driving force to improvements in the quality of motor oil. The oil must survive high temperatures and harsh conditions with a high-speed sliding contact. Lubrication is particularly difficult as the rings have an oscillating motion rather than continuous rotation (such as in a bearing journal). At the limits of piston movement, the ring stops and reverses direction. This disrupts the normal oil wedge effect of a hydrodynamic bearing, reducing the effectiveness of the lubrication.