Patent ID: 6941651
Filing Date: 2005-09-13
Classification: B21K,B23P,Y10T

Abstract:
1. A method of inserting and fastening a bearing within a pulley having an axially extending cylindrical hub portion with an axial bore forming an inner periphery of the pulley and a pair of opposite ends, an annular belt groove portion around an outer periphery of the pulley and annular disk shaped body portion extending radially between the hub and belt groove portion, the steps comprising: clamping the pulley in a fixed axial position between pair of axially aligned annular jaws; providing a bearing of a slightly larger outside diameter than the inside diameter of the bore of the hub; placing the bearing on a pilot pin extending through the axial center of the bore of the hub, thereby axially aligning the bearing with the bore of the hub, applying axial pressure to one side of the bearing to move it into the bore in a force fit therewith; and applying axial pressure simultaneously to both ends of the hub by means of two axially movable annular crimping members to crimp the ends of the hub around the bearing near its circumference to retain the bearing within the hub.