Cross-Roller Bearings

Read more...

To contact IRAUNDI, S.A. about Cross-Roller Bearings use Get a quote.

STRUCTURE AND FEATURES

Within the cross-roller bearing, cylindrical rollers are arranged with each roller perpendicular to the adjacent roller, in a 90º V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including radial, axial and moment loads.

Since the cross-roller bearing 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, cranes, medical equipment, measuring instruments and IC manufacturing machines.

• High rotation accuracy
The espacer retainer fitting among cross/arrayed rollers prevents rollers from skewing and the rotational torque from increasing due to friction between rollers. Unlike conventional types using steel sheet retainers, the cross-roller bearing does not cause unilateral contact of roller or seize. Thus, even under a preload, the cross-roller bearing provides stable rotation.

Since the inner and outer rings are designed to be separable, the bearing clearance can be adjusted. In addition, a preload can be applied. These features enable accurate rotation.

• Easy handling
The inner and outer rings, which are separable, are secured to the cross-roller bearing body after being installed with rolllers and spacer retainers in orded to prevent the rings from separating from each other. Thus, it is easy to handle the rings when installing the cross-roller bearing.

• 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.

Read less...

To contact IRAUNDI, S.A. about Cross-Roller Bearings use Get a quote.