Other rolling bearings

Track rollers, backup rollers and cam rollers

Ball bearing track rollers are self-contained, single or double-row ball bearings with especially thick-walled outer rings. These bearings are designed to handle not only high radial loads but also axial forces in both directions.

Yoke-type track rollers consist of single or double-row units mounted on shafts or studs. They feature thick-walled outer rings with a profiled outer surface and are equipped with either needle roller and cage assemblies or full-complement rolling elements.

Cam rollers are similar in design to single and double-row support rollers, but their raceway is formed by a heavy-duty roller stud with a threaded fixing and a lubrication hole.

Typical applications for these products include cam mechanisms, guide rails, conveyor systems, and linear guidance systems.

Crossed roller bearings

Crossed-roller bearings are high-precision bearings designed according to ISO dimension series 18 in compliance with DIN 616. They consist of outer rings, inner rings, rolling elements, and plastic spacers, with the outer ring split and secured by three retaining rings.

The X-shaped arrangement of the cylindrical rollers enables these bearings to support axial forces in both directions, along with radial forces, tilting moments, and any combination of loads using a single bearing position. This allows designs with two bearing positions to be streamlined into one. Crossed-roller bearings offer high rigidity, exceptional running accuracy, and are available with normal clearance, low clearance, or preload. The outer rings can be easily mounted to adjacent structures using clamping rings.

Needle Roller Bearings

Needle roller bearings use needle rollers as their rolling elements. In rolling bearing technology, cylindrical elements are defined as needle rollers when the rolling element diameter is ≤ 6 mm and the ratio of diameter to length is Dw/lw < 1:3.

The small diameter of the rolling elements gives all needle roller bearings a low radial section height. With line contact, these bearings are especially suitable for configurations requiring high radial load capacity and rigidity within a limited radial space.

Radial needle roller bearings function only as non-locating bearings. Bearings with inner rings permit a defined amount of axial displacement, allowing axial movement between the shaft and housing. Wider inner rings are available when larger displacement values are required.