Features: 1) The insert bearings are the deep groove ball bearings with wide inner rings, it inserts in housing work as a unit bearing 2) Housings are mainly castings or pressed steel 3) Compact in design with perfect sealing devices 4) Can align with easy during operation, and can be conveniently mounted or dismounted 5) Models available: PPX, PH, PA, FFU, FL, FLU, FC, C, T, FB, FA, HA