Radial drawn cup needle roller bearing

Opened and closed drawn cup needle roller bearings are needle roller bearings with the smallest radial construction height consisting of a thin walled non-cutting outer rings and needle cages. Cage with needles allows rolling placing with high load capacity and also provides excellent function of the bearing even at high speeds and long lubrication intervals thanks to the large spaces for grease. These drawn cup needle roller bearings, if not placed directly on the hardened shafts, may be combined with inner rings LR or IR. Inner rings belonging to specific bearings are indicated in the dimension tables. Drawn cup needle roller bearings are supplied in these design: HK – opened drawn cup needle roller bearings with a cage BK – drawn cup needle roller bearings with a cage, one-side closed In comparison with opened drawn cup needle roller bearings the closed drawn cup needle roller bearings type do have closed bottoms and are suitable to close the placing at the end of the shaft and to capture the start-up forces. Main dimensions of drawn cup needle roller bearings opened and drawn cup needle roller bearings closed, which are given by the dimensional tables, correspond to the international dimensional plan of ISO 3245. Designation of drawn cup needle roller bearings opened and drawn cup needle roller bearings closed in the main realization is given in dimensional tables. Drawn cup needle roller bearings have steel cages, which are not specifically indicated. The smallest sizes and bearings for special applications are made with polyamide cages indicated by the added letters TV.