| 摘要 |
1523708 Castors STEWART-WARNER CORP 13 May 1977 [17 May 1976] 20235/77 Heading A4U A castor includes a vertical pintle 15 having spaced thrust surfaces 62 and 66 whereby the surface 62 initially carries most of the load until it wears to cause the load to be distributed between the two surfaces. An axle (24) is centrally splined at (25) to prevent its rotation in the castor horn 11, and it rotatably carries a wheel 12 on each of its ends, the wheels having projections in their bores for snap-engagement with recesses in the axle. The thrust surface 66 engages a plastics bearing 67 comprising an annular part (68) having integral spherical projections (69). |
