In crossed cylindrical roller bearings,cylindrical rollers are arranged with each roller perpendicular to the adjacent roller, in a 90V groove, separated from each other by a spacer retainer. This design allows just one bearing to hold radial, axial and moment loads from all directions at the same time.

Applications

Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.

Features

1.High rotary accuracy and rigidity

The spacer retainer fi tting among cross-arrayed rollers prevents rollers from skewing and the rotational torque from increasing due to friction between rollers.Even under a preload, the Cross-Roller Ring bearing provides stable rotation. Since the inner and outer rings are designed to be separable, the preload can be adjusted, and this feature enables accurate rotation.

2.Easy to mount

The inner and outer rings, which are separable, are secured to the Cross-Roller Ring body after being installed with rollers and spacer retainers in order to prevent the rings from separating from each other. Thus, it is easy to handle the rings when installing the Cross-Roller Ring.

3.Skewing Prevention

The spacer retainer keeps rollers in their proper position, thereby preventing them from skewing (tilted rollers). This eliminates friction between rollers, and therefore secures a stable rotational torque. Roller Spacer retainer [Increased Rigidity

4.long life

Unlike the thin angular ball bearings installed in double rows, the cross array of rollers allows a single Cross-Roller Ring unit to receive loads in all directions, increasing the rigidity to three to four times greater than the conventional type.

Specifications of RU228UUCC0/P5

OD：295mm

ID：160mm

Pitch circle：227.5

Width：35

Oil hole：2

C:104kN

Co:173kN

weight:11.4kg