Sprocket washer with hub and keyway simple
Sprockets transfer operating torques with solid or changeable transformation ratio over a chain in chain gears (traction drives). Their interlock is standardised, it is preferably manufactured with the rolling process, larger divisions (through milling or bumping) also with the partial proceeding. Sprockets can be produced with one-sided or double-sided hubs, the design without hubs corresponds to the sprocket washers.
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