Axial Deep Groove Ball B. SKF 51117

The SKF 51117 axial deep groove ball bearing is designed to accommodate unidirectional axial loads, with key dimensions of 85 mm bore, 110 mm outside diameter and 19 mm height.

The SKF 51117 axial deep groove ball bearing is designed to support pure axial forces from a single direction. The combination of an 85 mm shaft diameter, a 110 mm outer diameter and a height of 19 mm makes this roller bearing the ideal component for compact axial shaft supports. Manufactured from standard roller bearing steel (100Cr6), the design complies with tolerance class P0/PN or ABEC 1. The component is used without a washer and is suitable for operating temperatures ranging from -30 to +150 degrees.

What loads can the 51117 axial deep-groove ball bearing withstand?

This single-direction axial bearing reliably supports rotating shafts against thrust forces acting exclusively in an axial direction. If radial forces occur in the system, these must be supported by separate radial bearings. The design is suitable for bearing arrangements in general mechanical engineering where axial forces act from one side only. A guided sheet steel cage ensures that the rolling elements are evenly spaced and supports smooth running up to a temperature limit of 150 degrees.

What should be borne in mind when fitting the 51117 series without angular compensation?

As the 51117 axial deep-groove ball bearing is not angularly adjustable, it requires precisely perpendicular contact surfaces on the shaft and housing. Misalignment between the shaft flange and the housing flange leads to edge stresses, which can cause premature wear of the rolling elements. Precise alignment of the surrounding structure is therefore essential. The shaft flange and housing flange have different fit dimensions; the flange with the 85 mm bore sits tightly on the shaft, whilst the housing flange requires sufficient radial clearance within the housing.