Crossed roller bearing retainer and crossed roller bearing

Abstract

A retainer of a crossed roller bearing has a retainer body plate of rectangular profile corresponding to a rectangular cross-section of a race. Rectangular side surfaces on either side of the retainer body plate are inclined planes that slant in a direction of approaching one another from one corner to another corner along a diagonal line of the surfaces, and extend towards a bearing center in a state of having been installed in the race. Recesses for accumulating grease are formed in center portions of the rectangular side surfaces, the recesses communicating via a through-hole. The rectangular side surfaces are in linear contact with the circular external circumferential surfaces of adjacent rollers and hold the rollers at a fixed spacing. There is obtained a retainer for an uncomplicatedly configured crossed roller bearing that allows adjacent rollers to be held at a fixed spacing and is provided with a grease accumulator.

Dependencies are inferred from the claim text.