| 摘要 |
A plastic wheel 122, 222 and wheel mounting sleeve 127, 227, 327, 427 used to releasably secure the wheel 122, 222 onto an axle 123, 223. The wheel mounting sleeve 127, 227, 327, 427 preferably includes a resilient, radially displaceable, axially extending, cantilevered finger 146, 246, 346, 446 which includes an axle-engaging lug 155, 255, 355, 455, while a wheel-engaging shoulder is provided on the sleeve by an annular rib 201, 301. The sleeve shoulders latch the sleeve 127, 227, 327, 427 to the axle 123, 223 and the wheel 122, 222 to the sleeve. The sleeve 127, 227, 327, 427 includes an axle stabilizing recess 198, 298, 398, 498 positioned in an end wall 158, 258, 358, 458, which receives an axle stub 199, 299 that supports the axle 123, 223 against lateral loading and stabilizes it to reduce wobble, chatter and vibration. |
