Needle roller bearings are bearings in which a thin needle-shaped roller is fitted into a rolling element. They are compact, light-weight and offer high load capacity. Being small, needle roller bearings contribute to reducing overall machine size, and are widely used in various applications, including automobiles and industrial machines. Their high quality has earned them an excellent reputation. IKO needle roller bearings have both radial and thrust types, based on the direction of the receiving load. Our radial type has cell type and machined type needle roller bearings, and our thrust type has thrust roller needle bearings and thrust roller bearings. We have two types of follower bearings, which are used for cam mechanisms or linear movements; cam follower and roller follower types.