The U type tapered roller bearings are an exception within the conventional tapered roller bearings since this is a compact unit type that includes the grease and is pre-regulated without having to install an opposite bearing. Furthermore, they have a flange on the outer ring that is fastened axially in the application once the bearing is mounted.Two rows of rollers give these bearings load capacities over five times higher than comparably sized tapered-roller bearings. One-Way Locking Needle-Roller Bearing Clutches. The needles in these bearings roll freely in one direction, but lock to transmit torque when the rotation of the shaft is reversed.

Tapered roller bearings must be cons tantly subjected to a sufficiently high load. Based on experience, a minimum radial load of the order of P C0r/60 is necessary. In most cases, however, the radial load due to the inherent weight of the bearing parts and the external.