Bearing assemblies for spindles

Abstract

The invention provides a new and useful bearing assembly and a spindle utilizing that assembly. The assembly comprising a housing adapted to be secured in a support member, the housing having arranged coaxially therein a cylindrical cavity, a first cylindrical aperture between the cavity and the exterior of a first end of the housing, and an at least partially threaded second cylindrical aperture between the cavity and a second end of the housing, the second aperture being of equal or greater diameter than the cavity; the cavity having arranged therein coaxially therewith, in abutting relation and of outside diameter sufficiently less than the diameter of the cavity to allow sliding movement therein, and in order from the first end, a spacer, a first sealed radial bearing, a second spacer, and a second sealed radial bearing, each of the spacers being of generally cylindrical configuration and of an inside diameter such that the spacers abut the edge of only the outer races of the bearings; the second aperture having threadably engaged therewith an end screw plug, the screw plug having a cylindrical aperture therethrough coaxial with the second aperture and of larger diameter than the inner diameter of the bearings, the face of the screw plug having a cylindrical protrusion thereon to abut the edge of only the outer race of the second bearing; the spacers, bearings and end screw being of predetermined width such that the end screw holds the bearings and the spacers against the wall of the first end of the cavity to thereby prevent axial movement of the bearings within the assembly. Novel shaft, drive cog and dust cover are also provided for the assembly.

Dependencies are inferred from the claim text.