Crossed roller bearings

Crossed roller bearings can support high loads. Due to the X arrangement of the cylindrical rollers, they can support axial forces in both directions, radial loads, tilting moment loads and any combination of loads by means of a single bearing position. As a result, it is generally possible to reduce conventional bearing arrangements comprising two bearing positions (bearing arrangement with one radial and one axial bearing) to one bearing position. 

Types: 

• Crossed roller bearings SX conform to ISO dimension series 18 in accordance with DIN 616. They are without gear teeth, unsealed, greased and with clearance, reduced clearance or preloaded. The outer ring is split in the circumferential direction and is held together by three retaining rings. 

• Crossed roller bearings XSU are without gear teeth, sealed on both sides, greased and preloaded. They have a centring stud on the inside and outside diameter and can be screw mounted directly on the adjacent construction. They have a lubrication nipple on the circumference of the outer ring.

• Crossed roller bearings XA have external gear teeth and are sealed and preloaded. They have a lubrication nipple on the circumference of the ring without gear teeth.

• Crossed roller bearings XI have internal gear teeth and are sealed and preloaded. They have a lubrication nipple on the circumference of the ring without gear teeth.

• Crossed roller bearings XU are without gear teeth and are sealed and preloaded. They have a lubrication nipple on the circumference of the outer ring.