Import Four-Point Contact Ball Slewing Bearing — Buy in Bulk from Supplier in China

The four‑point contact ball slewing bearing is a rotary bearing that supports radial and axial loads at four contact points. It is manufactured by Luoyang Jiawei Bearing Manufacturing Co., Ltd. in China. The catalogue lists diameters from 500 mm to 6 000 mm and a weight capacity from 75.8 kg up to 4 000 kg. Available ring styles include non‑teeth, internal‑teeth and external‑teeth configurations.

Rings are machined from high‑carbon chromium steel, which is the industry standard for heavy‑duty slewing bearings. Typical hardness for this material lies between 58 and 62 HRC, giving resistance to wear in abrasive conditions. Dimensional tolerances normally follow ISO 4923, with a positional accuracy of P6 for sizes above 1 000 mm. These specifications make the bearing suitable for mining hoists, port cranes and wind‑turbine yaw assemblies.

Buyers such as excavator manufacturers, concrete‑mixing plant builders and offshore crane integrators commonly source this product. Luoyang Jiawei offers custom design based on customer drawings and can supply miniature or specialized variants, but exact MOQ and lead time should be confirmed with the supplier. Importers are advised to request the latest product data sheet and verify the harbour trust tier before placing an order.

Luoyang Jiawei Bearing Manufacturing Co., Ltd. is located in the Luoyang Science Technology Zone, Henan Province, China (postal code 471003). The company is listed as an imported‑tier supplier with a harbour trust tier, indicating basic verification for overseas manufacturers. Its public profile shows a response rate of 0 % and no average response time recorded, so buyers should anticipate the need for proactive communication.

The supplier states that it can design and manufacture bearings according to customer drawings, offering OEM services for non‑teeth, internal‑teeth and external‑teeth slewing rings. It also mentions the capacity to provide miniature, automotive and excavator‑type bearings, but the listing does not disclose specific minimum order quantities, lead times or certification details, which should be clarified directly with the company.