Precision Bearing

  • The largest main shaft bearing: ID 1250mm, runout up to 6μm and the accuracy up to P2
  • Unique National Gold Award (B3-706 B3-707) & First prize of National science & technology improvement award in 1982
  • LYC YRT series bearing reach P2 precision.
  • Over 60% in the domestic heavy machine tool industry.
  • In 2012, the special large precision main shaft bearing developed for the national key equipment 400 tons CNC horizontal lathe.
  • Bearing accuracy of for jig boring machine do not change within 20 years for Kunming machine tool plant


  1. Special Precision Bearing
  2. YRT Bearing
  3. Angular Contact Ball Bearing
  4. Cylindrical Roller Bearing
  5. Flexible Bearing