Import Drawn Cup Needle Roller Clutches — Buy in Bulk from Supplier in China

The YFB series drawn cup needle roller clutches from Changzhou Yunfan Bearing Co., Ltd are precision-engineered components designed for applications requiring unidirectional torque transmission and locking. Available in HF, HFL, RC, and RCB series, these clutches feature a thin-walled drawn steel outer cup, needle roller bearings, and a spring-loaded retainer to ensure reliable engagement and disengagement under load. Dimensions and internal geometries follow standard industrial tolerances for needle roller clutch assemblies, with bore diameters ranging from 10 mm to 50 mm depending on the series.

The outer rings are manufactured from high-carbon chromium steel, typically GCr15 or equivalent, hardened to HRC 58 - 62 for wear resistance. The needle rollers are ground to a tolerance of ±0.002 mm and retained by a stamped steel cage. These clutches are not sealed or lubricated at the factory; users must apply grease or oil during installation. Typical operating temperatures range from -20°C to 120°C, with short-term peaks up to 150°C acceptable if lubrication is maintained. The design allows for axial loads up to 15% of the radial load capacity without compromising performance.

These clutches are commonly integrated into gearboxes, conveyor drives, textile machinery, and automotive auxiliary systems where back-driving must be prevented. Buyers in the automotive aftermarket, industrial automation, and packaging equipment sectors source these components for replacement and OEM production. Packaging is typically in bulk cartons of 50 to 200 units, with inner plastic wrap and corrugated outer boxes. Trade terms offered include FOB Shanghai or CIF, with lead times of 15 to 25 days for standard orders. MOQ is not specified and must be confirmed directly with the supplier.

Changzhou Yunfan Bearing Co., Ltd is a manufacturer based in the Wujin Hi-Tech Industry Zone, Changzhou, Jiangsu Province, China. The company is listed as an imported supplier with harbor trust tier, indicating verified export documentation and logistics capability. No information is available regarding years in operation, workforce size, or annual production volume. The supplier's profile does not list certifications, client names, or in-house testing facilities.

The supplier focuses on needle roller clutches and related bearing components for export markets. They do not claim ISO certification, nor do they reference any R&D capabilities or proprietary designs. Their listing shows no response rate or average response time, suggesting limited buyer communication infrastructure. Buyers should treat this supplier as a manufacturer of standard industrial components, not a technical partner, and verify all specifications before ordering.