The Gear Hobbing Process

The article "The Gear Hobbing Process" appeared in the January/February 1994 issue of Gear Technology.

Summary
Gear hobbing is a generating process. The term generating refers to the fact that the gear tooth form cut is not the conjugate form of the cutting tool, the hob. During hobbing both the hob and the workpiece rotate in a continuous rotational relationship. During this rotation, the hob is typically fed axially with all the teeth being gradually formed as the tool traverses the work face (see Fig. 1a).

Keywords
hobbing, hobs, basics, gear fundamentals, hobbing machines, Back to Basics

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