RAYSDE Bearings is a bearing supplier & B2B OEM partner based in Tianjin, China — we are not a manufacturer. We work with ISO 9001:2015 certified manufacturing partners and run strict quality control on every batch before it ships. Photos and video from our latest partner factory audit are on our factory tour page.
Every batch is dimension-checked before shipment, including three-coordinate (CMM) measurement on request. Products are made from GCr15 bearing steel and ship with a free 3.1 material certificate. Our partner plant — Dalian Chengfeng Bearing Group Co., Ltd. (Liaoning, China) — is certified by AMTIVO to ISO 9001:2015 for the manufacture of rolling bearings (Certificate No. 608865, valid until 2027-09-25).
Yes. Factory audits at our certified partner plants in Liaoning can be arranged with advance notice. If a visit is not practical, we regularly share audit photos, inspection records and certificates, and can set up a video-call walkthrough on request.
Yes. Send us one drawing or bearing designation and we return dimensions, load ratings and certification. We also provide drawing verification for buyers evaluating a second source.
Contact [email protected] for the dimension catalogue.