Dalian Hoyi Bearings has single row angular contact ball bearings that operate at a high rotating speed and offer radial and axial loads. They have five models with bore diameter measuring from 120mm to 1000mm.

UBC Precision Bearings manufactures angular contact ball bearings that meet specifications of bearing precision more than GB/307.1-94 P4, high speed performance (dmN: 1.3~1.8x 106 /min), and life expectancy greater than 1500h. UBC angular contact ball bearings come as spindle bearings with 15° and 25° contact angles and ball screw bearings of 60° contact angle. They offer 719XX, 70XX, 72XX, and 7602XX series of P2, P4, P5 precision levels and 20MM-75MM diameter.