Bearings For Screw Drives

Makes A Difference

Axial angular contact ball bearings are available in single row, double row or triple row ready-to-fit units
They are self-retaining and comprise thick-walled, geometrically stable outer rings, ball and cage assemblies and single-piece or two-piece inner rings
In several series, the outer ring has through holes for straightforward flange mounting of the bearing to the adjacent construction
The bearing rings are matched to each other such that a defined preload is achieved once the rings are clamped by means of a precision locknut

Comprise an outer ring with radial and axial raceways, two shaft locating washers, an inner ring, a radial needle roller and cage assembly and two axial cylindrical roller and cage assemblies
The bearings are available in versions that are suitable or unsuitable for screw mounting

Are screwed to the centre washer of needle roller/axial cylindrical roller bearings and precisely centred there
They seal the bearings from the outside
The sealing elements are supplied as a complete set and comprise a seal carrier with an integral rotary shaft seal, a gasket and socket head cap screws for mounting the carrier on the centre washer of the bearing

Manufactured to the same close tolerances as the radial type, but designed with contact angles of 15, 30, and 40 to accommodate greater thrust loads
A common choice, at higher precision levels, for applications such as machine tool spindles where both accuracy and high thrust loads are present
They are typically mounted in pairs, providing thrust capacity in either direction and good rigidity for applications where shaft movement is critical
Double row assemblies offer shaft rigidity, compactness, and higher radial capacity as well as moderate thrust capacity in both directions