| 摘要 |
A track guide bearing assembly is provided with a slide table having a plurality of axial ball rolling grooves and an axial through-bore providing ball paths formed rearwardly of the ball rolling grooves, side plates fixed to the opposite end surfaces of the slide table and havng arcuate ball paths formed as recesses, the arcuate ball paths having narrow escape grooves at the bottom thereof, a number of balls rollably disposed in the ball rolling grooves of the slide table, the through-bore and the arcuate ball paths of the side plates, a retainer comprising a wire rod having a straight portion and arcuate bent portion at the opposite ends of the straight portion, and an elongate track shaft having axial ball rolling grooves fitted to the balls disposed in the ball rolling grooves of the slide table.
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