Axial Deep Groove Ball B. FAG 51128

The FAG 51128 axial deep-groove ball bearing, with dimensions of 140 × 180 × 31 mm, accommodates unidirectional axial forces in mechanical engineering applications.

The FAG 51128 axial deep-groove ball bearing is designed as a single-acting axial bearing and supports shafts in the axial direction. With a bore of 140 mm, an outside diameter of 180 mm and a height of 31 mm, this rolling bearing is suitable for industrial applications. Manufactured from standard rolling-bearing steel 100Cr6 and fitted with a sheet steel cage, the bearing operates within a temperature range of -30 to +150 degrees. It is manufactured to tolerance class P0/PN or ABEC 1.

What are the practical applications of the 51128 axial deep-groove ball bearing?

This rolling bearing is primarily designed to accommodate high axial loads from a single direction, whilst radial forces must be absorbed by separate radial bearings. Typical applications are found in general mechanical and plant engineering for vertical or horizontal shaft guides with a defined axial preload. As this model is not angularly adjustable, the bearing arrangement requires precisely aligned shafts and right-angled contact surfaces. Careful alignment of the connecting parts prevents edge running and uneven loading of the rolling element raceways.

What implications does the single-direction action have for design and assembly?

Single-direction axial bearings consist of a shaft ring with a tighter fit, a housing ring and the guided ball and cage assembly. They transmit axial forces exclusively in one direction and provide single-sided axial support for the rotating shaft. If the direction of the load varies, a double-acting bearing or a second bearing unit must be provided. Furthermore, this design is supplied without shims, which is why the housing side must bear directly against a flat mounting surface.