| 摘要 |
Drive sheaves are disclosed herein. An embodiment of a drive sheave includes a tire portion wherein the tire portion comprises an inner circumferential surface and an outer circumferential surface. The tire portion also includes a first surface extending between the inner circumferential surface and the outer circumferential surface and a second surface extending between the inner circumferential surface and the outer circumferential surface, the second surface being oppositely disposed relative to the first surface. At least one hole in the tire portion extends between the first surface and the second surface.
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