gear-hobbing machine

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June 29, 2026

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A gear-hobbing machine is a specialized tool used for milling gear teeth. It employs a rotating, multi-tooth cutter known as a hob. This hob spins at a specific speed relative to the gear blank being cut, generating teeth for various gear types, including spur gears, worm gears, and helical gears, as well as splines and sprockets.1

This method is highly efficient for mass production because the hob cuts continuously, resulting in accurate gears at high speeds. Gear hobbing is a generating method, meaning it utilizes the principle that gears mesh properly if they share the same diametral pitch. The hob's shape is designed to create the correct tooth profile on the gear blank.1

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machine tool
Gear-cutting machines
Gear-hobbing machines use a rotating, multiple-tooth cutting tool called a hob for generating teeth on spur gears, worm gears, helical gears, splines, and sprockets. More gears are cut by hobbing than by other methods because the hobbing cutter cuts continuously and produces accurate gears at…
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Gear-hobbing machines use a rotating, multiple-tooth cutting tool called a hob for generating teeth on spur gears, worm gears, helical gears, splines, and sprockets. More gears are cut by hobbing than by other methods because the hobbing cutter cuts continuously and produces accurate gears at…
Read More