Crossed Roller Slewing Bearings with Internal Gear

Crossed roller slewing bearings

Crossed roller slewing bearings have exceptional performance which benefits from a precise and unique structural design, enabling it to simultaneously withstand complex loads-including axial forces, radial forces, and tilting moments-within a singl, compact unit. The essence of the crossed roller slewing bearing lies in the arrangement of its rolling elements. Different from traditional ball bearings, it utilizes cylindrical rollers alternately and orthogonally at a 90° angle within V-shaped raceways. Adjacent rollers are typically separated and guided by spacers.

Features & performance advantages

Its 1:1 crossed arrangement creates extensive line contact between the rollers and the raceways. Compared to the point contact in ball bearings, line contact distributes loads more evenly, endowing the bearing with exceptional rigidity and load-carrying capacity.

Specification

Our equipment

Why Choose Us

High load capacity, wear resistance & long service life

Strict dimensional tolerance, smooth rotation

Customization drawings / OEM / ODM available

Direct factory price, stable delivery

Complete inspection & test report before shipment

Suitable for heavy-duty engineering & harsh working environment

After Sales Service

Tailored product according to your drawings or samples

Professional technical support anytime

Strict quality inspection & full set of shipping documents

Fast delivery & safe packaging (plywood pallet/case)

One-year quality warranty

FAQ

1. Why is it necessary to use precision spacers instead of traditional cages in crossed roller slewing bearings?

Traditional cages typically only provide point or partial suport for rolling elements. In contrast, precision spacers provide full-length support and guidance for each roller. This structural design effectively prevents the rollers from tilting, skewing or rubbing against each other during operation.

2. What can we benefit from the precision spacers?

This design not only ensures stable rotational torque and reduces friction but also significantly enhances the overall rotational precision and load-bearing rigidity of the slewing bearings, especially under preloaded conditions.