Nylon Bearing Cage

The annular structure features uniformly distributed rectangular window holes, with finely chamfered edges designed to match the motion trajectory of rolling elements. As a core internal component of bearings, this cage maintains equal spacing between balls or rollers, guiding them for smooth operation within the raceway. This effectively reduces the friction coefficient and prevents collisions between rolling elements.

The injection molding process demands high precision in mold cavity accuracy and runner design to ensure consistent window hole positioning and a burr-free finish. Materials such as PA66 or modified nylon thermoplastics are selected for their excellent wear resistance, self-lubricating properties, and dimensional stability. These characteristics allow the cages to withstand high-speed rotation or frequent start-stop conditions, while controlled moisture absorption ensures long-term geometric precision.

Operating under the IATF16949 certification system, our factory is equipped with injection molding machines from brands like Shuangsheng and Sumitomo, as well as Zeiss coordinate measuring machines (CMM). We implement full-process control from raw material moisture preconditioning to final visual inspection. For custom requirements across deep groove ball, cylindrical roller, and thrust bearing series, we optimize process parameters according to drawing tolerances to guarantee consistency in mass production.