Zhejiang Zhongzhou Bearing Co.,Ltd

Zhejiang Zhongzhou Bearing Co.,Ltd was founded in 2010, it is specialized in precision deep groove ball bearings. The factory owns 140 employees, and 60 million pieces annual production capacity. Now the factory independently makes steel tubes in house, owns automatic heat treatment production lines and dozens of automatic assembly lines.

CBB is the private brand of Zhongzhou Bearing. The featured product is High Precision EMQ Deep Groove Ball Bearings, with inner bore diameter ranging from 6mm to 40mm, noise and vibration levels that exceed Z4/V4. All production lines including steel tubes making, heat treatment, grinding, super finishing, assembly are 100% automatic. The factory is also equipped with professional QC teams and automatic inspection equipment to ensure the stable and high quality. Zhongzhou Bearing has ISO 9001, ISO/TS 16949 and ISO 14001 Environment certified.

EMQ Deep Groove Ball Bearings

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Test Center

CBB Bearing test center has a complete range of measuring instruments for bearing products, including roundness and length measuring instrument, roughness measuring instrument,vibration tester, groove radius measuring instrument, life test machine, metallographic test machine, microscope, projector, salt spray testing machine, high temperature tester, etc. It provides a strong guarantee for stable and high quality.

QC Team

CBB Bearing has a professional QC team, which is in charge of quality inspection during the whole production, including IQC, IPQC, FQC. The inspectors provide 100% guarantee for good quality before delivery.

  • TEL:+1 630 671 9515
  • FAX:+1 630 671 9516
  • EMAIL:
  • ADDRESS:801 Dave Pate Drive, Roselle, IL 60172