Ultra-precision two-way angular contact thrust ball bearings

Description

Bidirectional thrust angular contact ball bearings are designed for bidirectional positioning of spindles. These bearings are combined with cylindrical roller bearings of the NN 30 K or N 10 K series and mounted in the same housing bore. This bearing combination simplifies the machining of the housing bore.

The nominal inner and outer diameters of bidirectional thrust angular contact ball bearings are the same as those of corresponding cylindrical roller bearings. However, the housing ring outer diameter tolerance combined with the recommended housing bore and geometric tolerances for super-precision cylindrical roller bearings allows the housing bore to have an appropriate radial clearance. This clearance is sufficient to prevent the thrust bearing from being subjected to radial loads if the outer ring is not pressed axially in the housing.

Bearing characteristics:

Can withstand axial and radial loads

High load carrying capacity

High axial stiffness

low friction

High speed performance

Thrust angular contact ball bearing product categories

Thrust angular contact ball bearings are available in a variety of designs and sizes up to an outer diameter of 1 800 mm, with two main designs:

One-way angular contact thrust ball bearing

Bidirectional angular contact thrust ball bearings

In addition to the bearings introduced in this chapter, super-precision angular contact thrust bearings for special applications (such as machine tools) are shown in this chapter:

Two-way bearing

One-way and two-way bearings and flanged housing sleeve units for screw drives