Automotive Transmission Synchronizer Ring

This annular component features an outer conical surface and inner splined bore, serving as a critical part of the transmission synchronizer to match rotational speeds during gear shifting. The geometric precision of its internal and external surfaces directly determines shifting smoothness and wear resistance, requiring strict control over tooth profile parameters, cone angle tolerances, and face runout.

The manufacturing process involves precision turning, gear hobbing, and subsequent heat treatment to ensure core toughness and surface hardness meet the demands of high-frequency friction conditions. A key focus is controlling the finishing grinding allowance after heat treatment deformation. CNC gear hobbing and honing machines are utilized to ensure tooth direction errors comply with standards, while surface grinders correct reference surfaces to maintain consistency in mass production.

Taizhou Dingzhen Cam holds IATF 16949 quality management system certification and is equipped with specialized facilities including CNC gear hobbing machines, honing machines, and a gear inspection center. We support one-stop delivery from rough forging to finished precision machining. We accept custom orders based on drawings for alloy steels such as 40Cr and 20CrMnTi, providing complete quality documentation including material reports, hardness testing, and full-dimensional inspection to meet the procurement needs of the automotive parts and garden machinery powertrain industries.