Selecting the Right Gear Hob: A Practical Guide for Gear Manufacturers

Premature hob wear. Inconsistent tooth profiles. Unexpected tool failures mid-run.

More often than not, the culprit isn't the machine or the operator — it's the wrong hob for the job.

Selecting a gear hob goes well beyond matching module and pressure angle. Material grade, coating chemistry, geometry, and machine capability all play a role in how long a hob lasts and what it costs you per gear produced.

I put together a practical guide covering everything from HSS grades and carbide to coatings like TiAlN and AlCrN, DIN accuracy classes, and total cost of ownership.

If you're a gear manufacturer or work with gear cutting tools, I think you'll find it useful.