Double-row tapered roller bearing assembling jig, and assembling method for double-row tapered roller bearing

A double-row tapered roller bearing assembling jig to be used when assembling, to a rotating member, a double-row tapered roller bearing including a pair of tapered roller bearings disposed facing each other, each of the pair of tapered roller bearings comprising an inner ring, an outer ring, a plurality of tapered rollers rollably disposed between the inner ring and the outer ring, and a cage that holds the plurality of tapered rollers, the cage constituting cages of the pair of tapered roller bearings, wherein the double-row tapered roller bearing assembling jig comprises:

• at least one main body;
• an engagement claw or claws extending from the at least one main body;
• and
• at least one plate spring also extending from the at least one main body, and
• wherein the double-row tapered roller bearing assembling jig is configured such that, when the double-row tapered roller bearing is assembled to the rotating member, the at least one main body, engagement claw or claws, and the at least one plate spring of the double-row tapered roller bearing assembling jig each contact the double-row tapered roller bearing so as to bring and hold one of the cages adjacent to a large end side of one of the inner rings or so as to bring and hold a large flange of the one of the inner rings adjacent to a large end side of the tapered rollers, with gap formation between a large end surface of the tapered rollers that constitute one of the tapered roller bearings and the large flange of the one of the inner rings, which might otherwise be introduced when the double-row tapered roller bearing is assembled to the rotating member, being eliminated or reduced.