Import Ceramic Angular Contact Ball Bearing — Buy in wholesale FOB from Supplier in China

Ceramic angular contact ball bearings from Dalian Chengyi Mechanical Co., Ltd are precision components designed for extreme-speed operations, with inner diameters spanning 10 to 60 mm and precision grades of P4, P4A, and P2. The bearings incorporate silicon nitride (Si3N4) ceramic balls paired with stainless steel or chrome steel rings, enabling rotational speeds up to 80,000 RPM while maintaining high rigidity and operating accuracy. This construction also provides low starting torque and extended service life, with the 70 series bearing sizes ranging from 7001C HQ1/P4 (12 mm inner diameter, 28 mm outer diameter) to 7018C HQ1/P4 (90 mm inner diameter, 140 mm outer diameter).

The Si3N4 ceramic balls offer inherent advantages such as thermal stability, corrosion resistance, and self-lubrication, making them ideal for harsh environments where traditional steel bearings may fail. The cages are manufactured from engineering plastics like nylon (TYN), phenol resin (TR), or PEEK, which reduce friction and heat generation during high-speed rotation. These bearings are standard for applications in machine tool spindles, aerospace systems, and medical devices, where precision and reliability are critical. Typical industry standards for ceramic bearings include ISO 15, ABEC 7 or 9, and P4 to P2 precision grades, ensuring compatibility with high-performance machinery.

Industrial buyers source these bearings for use in CNC machining centres, dental drills, and turbomolecular pumps, where their ability to withstand temperature fluctuations and corrosive conditions is paramount. The bearings are packaged for export in compliance with standard ball bearing HS codes, and are commonly procured in bulk for OEM integration. Buyers should confirm compatibility with their equipment’s speed and load requirements, as well as the appropriate precision grade for their application.

Dalian Chengyi Mechanical Co., Ltd is based in Dalian City, Liaoning Province, China, and operates as a supplier of precision mechanical components, including ceramic angular contact ball bearings. The company’s address confirms its location in a key industrial hub for machinery and export manufacturing, aligning with its focus on high-performance bearings for global B2B markets. The supplier’s profile indicates a harbor trust tier, reflecting its established presence in international trade.

The company specializes in bearings engineered for high-speed and high-precision applications, catering to industries such as aerospace, medical equipment, and machine tools. While the supplier’s response rate and average response hours are not currently available, its product offerings are tailored to meet the demands of OEMs and industrial buyers requiring reliable performance under extreme conditions. The absence of verified response metrics means buyers should directly confirm lead times, technical support availability, and customization options.