US 2003/0201108 A1 · Rotary disc for a disc plough or the like

Abstract

A rotary disc for a disc plough or the like includes a circular disc having a circumferential cutting edge and a centrally located hub having a bearing seat for a bearing for mounting on a shaft journal incorporated in a frame. The hub is designed as a separate annular sleeve detachably attachable to the plough disc, with the sleeve having the bearing seat provided in the inner surface of the hub. At least a surface region of the hub is softer than the rings of the bearing to be interconnected to the hub via the seat, and the seat in its surface facing the bearing has a number of surface irregularities arranged, under a mutual axial mounting motion between the seat and the bearing ring to cause a deformation of the softer surface region, thereby forming a mutual grip between the seat and the bearing ring.

Claims19

Dependent claims

A rotary disc for farm equipment comprising:

a circular disc having a circumferential cutting edge;
a centrally located hub separate from the disc and adapted to be detachably connected to the disc, the hub having a bore whose inner periphery provides a bearing seat;
a bearing adapted to be received at the bearing seat with surfaces of the bearing and the bearing seat facing one another, the bearing comprising an inner bearing ring, an outer bearing ring and roller elements positioned between the inner and outer bearing rings;
the surface of the bearing seat facing the bearing having a plurality of spaced apart raised regions so that deformation to the softer surface region occurs during mounting of the bearing at the bearing seat to produce a mutual grip between the bearing seat and the outer bearing ring.

1 more element

Dependencies are inferred from the claim text.

Rotary disc for a disc plough or the like

Life of this patent

Rotary disc for a disc plough or the like

Life of this patent

Abstract

Claims19