Gear Hob Structure

Gear Hob Structure

Hob is the cutting tool which has the rack cutting teeth on its body as the  shape of a screw.  The basic rack (rack cutting teeth) projects the rotating hob which has teeth  in a screw pattern to generate the gear.  Work piece is rotated so that it may gear with this basic rack, and feeding a  hob in the lead direction generates the gear.

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