| 摘要 |
A track assembly includes a frame. The track assembly also includes a drive wheel and an idler wheel rotateably secured to the frame. The track assembly further includes an endless belt having an inner surface and an outer surface. The endless belt is disposed around the drive wheel and the idler wheel. The track assembly also includes a guide block secured to the inner surface of the endless belt. The track assembly further includes a first roller rotateably secured to the guide block.
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