| 摘要 |
A kicker wheel roller assembly for an automatic bowling ball return mechanism comprising a permanent hub member and a replaceable contact surface member frictionally mounted thereof. The contact surface member is formed of an elastomeric resilient friction material, e.g. polyurethane, and has a non-circular opening, e.g. square, splined, etc., therethrough which is received on a matching non-circular driving portion of the hub member. The conformed non-circular mating surfaces provide a positive driving connection between the hub and contact surface members. The contact surface member is held on the hub only by its resiliency and can be easily positioned onto and removed from the hub which, in turn, is reuseable.
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