Method for assembling rolling bearing device

Abstract

A roller bearing assembly is assembled using a first cage 25 featuring high general-purpose versatility and supporting individual first-row tapered rollers 18 a by means of the first cage 25 in a manner that in a state where the first cage 25 is horizontally supported and has its greater diameter side positioned upwardly, all the first-row tapered rollers 18 a of a sub-assemble member 20 have their centroids located radially outwardly with respect to the radially innermost points on which the first-row tapered rollers 18 a are supported by the first cage 25.

1 . An assembling method for a double-row tapered-roller bearing assembly comprising: 
 an outer ring including a first outer raceway and a second outer raceway formed on an inner peripheral surface thereof;    a hub body including a first inner raceway in opposing relation with the first outer raceway, and formed with a flange projecting diametrically outwardly from one end thereof;    an inner ring including a second inner raceway in opposing relation with the second outer raceway, and fixedly fitted on an outer peripheral surface of the other end of the hub body;    a plurality of first-row tapered rollers interposed between the first inner raceway and the first outer raceway;    a first cage allowing the first-row tapered rollers to be arranged thereon at regular space intervals; and    a first seal ring disposed on the inner peripheral surface of the outer ring at its end close to the first outer raceway, the method comprising:    a first step of forming a first step member by combining a sub-assemble member with the first outer raceway of the outer ring, the sub-assemble member combining the first cage with the first-row tapered rollers;    a second step of forming a second step member by mounting the first seal ring to the first step member; and    a third step of combining the second step member with the hub body,    wherein during the first to third steps, the individual first-row tapered rollers are supported by the first cage in a manner that in a state where the first cage is horizontally supported and has its greater diameter side positioned upwardly, all the first-row tapered rollers of the sub-assemble member have their centroids located radially outwardly with respect to the radially innermost support points on which the first-row tapered rollers are supported by the first cage.