Changzhou Boren Precision Machinery Co., Ltd

Changzhou Boren Precision Machinery Co., Ltd was founded in 2007, with 3 manufacturing bases and more than 120 employees. The annual production capacity are 800 thousand stainless steel mounted units and 1million Polymer Housings. The factory owns advanced automatic production lines for high volume orders, and also accepts low minimum order quantities.
CZBR is the private brand of Boren. The featured products are Stainless Steel Mounted Bearings, including eccentric locking collar and set screw type, equipped with high temperature seals and grease, Zinc Alloy Housings, Thermo Plastic Housings, Pressed Stainless Steel Housings, Spherical Plain Bearings and Precision Stainless Steel Castings. Generally, the products are made of #304 and #316 stainless steel, # 420 stainless steel and #440 stainless steel. The factory is equipped with inspectors and automatic inspection equipment to ensure stable and high quality. Boren is ISO 9001 and ISO14001 Environment certified, and providing products to tier 1 bearing companies around the world.

Stainless Steel Inserts Bearing

Stainless Steel Mounted Bearing

Thermoplastic Mounted Bearing


More than 13 years of manufacturing experience
More than 120 professional employees
More than 800,000 annual Stainless Steel Bearing Unit capacity
More than 1 Million annual Polymer Housing capacity
● ISO9001 Quality Management System certified
● Low minimum order quantities
● Automatic production lines for high volume orders
● Providing products to Tier 1 bearing companies around the world
  Quality Management

Test Center

CZBR owns a product test center equipped with dozens of testing equipment, including bearing life testing machine, measuring projector, metalloscope, universal tensile testing machine, roughness and hardness measuring instrument, electroplating thickness measuring instrument, salt spraying tester,etc. Under the control of a professional QC team, the good and stable bearing quality can be guaranteed.