Compression Rings - Barrel Faced Design | Enhanced Lubrication And Oil Distribution Efficiency

These barrel faced Compression Rings are a piston ring that has a curved running surface to provide consistent lubrication of the piston ring and cylinder wall. This also provides a wedge effect to optimize oil distribution throughout the full stroke of the piston. In addition, the curved running surface reduced the possibility of an oil film breakdown due to excess pressure at the ring edge or excessive piston tilt during operation.
Engines use either taper-faced or barrel-faced compression rings. A taper faced compression ring is a piston ring that has approximately a 1A taper angle on the running surface. This taper provides a mild wiping action to prevent any excess oil from reaching the combustion chamber.