Combined Type Needle Roller Bearing, Three-Point Contact Ball, Open, 55 x 80 x 38 mm, IKO.

Combined type needle roller bearings are combinations of a radial bearing and a thrust bearing. Caged needle roller bearings are used as radial bearings and thrust ball bearings or thrust roller bearings are used as thrust bearings. They are compact and very economical, and can be subjected to radial loads and axial loads simultaneously. They are widely used for machine tools, textile machinery, and industrial machinery. These bearings can withstand heavy radial loads and bi-directional axial loads at the same time during highspeed rotation. Since the non-interchangeable inner rings are separated at the center of the ball raceway surface, they must be firmly tightened against the shaft in the axial direction.