To provide an automatic aligning roller bearing which is applied to uses, such as a spindle supporting device for a wind power generator, where asymmetric load is imposed on the left and right rows, and which in such cases can perform appropriate support at respective rows in accordance with load so as to expand a substantial service life and deliver economy by eliminating waste in materials, processing, working or the like.
The automatic aligning roller bearing 1 is of double rows. The whole of the bearing 1 is split into bearing split bodies 1A, 1B in respective left and right rows. Components relating to load or service life in the left and right bearing split bodies 1A, 1B are made different from each other. The shapes and dimensions of the left and right bearing split bodies 1A, 1B are allowed to be identical. In the bearing split bodies 1A, 1B, components relating to load or service life to be respectively split into two are any of materials, surface modification treatment and surface roughness, one or more of which are made different. In addition, dimensions of the left and right bearing split bodies 1A, 1B are allowed to be made different.
YAGI SOICHI
HORI SEIJI
Shuji Sugimoto