| 摘要 |
<p>A method of manufacturing double row angular contact ball bearings having race rings (10,11) made from tubular sheet metal work pieces, and balls (12) arranged therebetween in two rows, including shaping a first of said work pieces to a finished outer race ring (10) having axially spaced finished outer raceways formed in the said first work piece; concentrically aligning a second of said work pieces with the outer race ring to form a rotatable unfinished inner race ring (11), introducing balls (12) between said finished (10) and unfinished race rings (10,11); inserting rotatable forming members (15, 16) at opposed ends of the unfinished inner race ring (11); preventing rotation of the outer race ring (10) below a predetermined torque; rotating inner race ring (11) and forming members (15,16) to cause the balls (12) to roll constantly about the inner race ring (11); bending the ends of the unfinished inner ring (11) by said forming members (15,16) to shape the unfinished inner raceways to final finished form, until the balls (12) are permanently encapsulated in two rows, forming a bearing free from play, whereby the finished outer race ring (10) is caused to start rotating with the inner race ring (11); and using said start of rotation as indication that formation of the bearing is completed. <IMAGE></p> |
