Draw key

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A draw key is a machine element for engaging and disengaging multiple gears on a shaft . For this purpose, the shaft is drilled out and provided with a milled window into which the draw key is inserted. It is actuated by a rod inserted into the bore; the draw key itself acts like a feather key in the corresponding groove of the gears. The gears are positively connected to the shaft depending on the position of the draw key . The draw key is used in the manual transmission of light motor vehicles such. B. on the motorcycle . In a slightly modified form, the draw key is also part of hub gears for bicycles .

There are also draw wedge gears in which the draw wedge sits firmly on a non-hollow shift shaft.