Fit chain drive sprocket on the crankshaft.

将链条驱动链轮安装到曲轴上。

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In continued operation the chain can jump a tooth on the drive sprocket or break entirely, with either case resulting in engine damage from valve-piston collisions.

在继续运作链可以跳转牙齿的驱动器上链轮或完全中断，与任何一种情况下造成的损害阀发动机活塞碰撞。

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It consists of motor, drive mechanism and the drum or sprocket composition, divided into two types of wire rope and chain.

它由电动机、传动机构和卷筒或链轮组成，分为钢丝绳和环链两种。

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Cycling did not appeal to the masses until the introduction of the pneumatic safety bicycle with a chain and sprocket drive (the prototype of the modern design).

FORBES: A Comic Look At The 1890s Bicycle Boom