The elastic retaining ring for the hole is installed in the round hole, which is used for the axial movement of the fixed parts. When installing, the pliers must be inserted into the pliers hole of the retaining ring to insert the pliers into the pre-machined round hole. groove. The specification range of the retaining ring for holes: Φ8-Φ200; heat treatment needs to be quenched and tempered, HRC 44-51 (process reference value); the material is mainly 65Mn spring steel, the surface of the product is treated, and the spring steel is basically heat-treated black or Phosphating to ensure hardness, uniform elasticity, flush surface deburring. The surface of stainless iron and stainless steel retaining ring is bright in nature. We can also customize according to your needs, according to your use conditions, select suitable materials to meet your needs to the greatest extent.