#3 Woodruff Keys

Woodruff keys, sometimes called Half-Moon Keys, are semicircular shaped keys, such that, when installed into a semi-circular pocket keyway in a shaft, they leave a protruding tab.. They are used to improve the concentricity of the shaft and the mating part, which is critical for high speed operation. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
JacksonMSWoodruff KeySteelPlain#3hi-pro #404 hypro woodruff key5000
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CenturyFLWoodruff KeySteelPlain#3ms35756-6 q4b100
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HewesNYWoodruff KeySteelPlain#3woodruff keycarbon80
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KomarILWoodruff KeySteelPlain#3woodruff key(1/8x1/2) hardened rc 40-502,800
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TimberlineCOWoodruff KeySteelPlain#3woodruff key pkg #3 #10-0360
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