Radial Preload for Floating Spindle Bearing
Original Publication Date: 1985-Sep-01
Included in the Prior Art Database: 2005-Feb-19
The present structure provides a flat leaf spring for radial preload of a floating bearing. This is in contrast to the conventional method of a slip fit into the housing and concentrated radial preload causing elliptical deformation of the bearing's outer race and necessitating the use of a stiffening ring or a non-standard bearing. In Fig. 1, a flat leaf spring 2 is wrapped partially around the outer race of the floating bearing 4 with its ends anchored into the housing 6. The bearing registration surface 8 of the housing 6 is interrupted so that the floating bearing 4 is supported on two portions of the outer race. This clamps the bearing in a fashion similar to a three-jaw-chuck, making the bearing outer race very rigid and reducing radial deformation. In Fig.