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Gear Hobbing

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Like all broaching processes, gear hobbing machines are hydraulic cutting tools used to cut holes in metal, wood and plastic materials. Broaching teeth come in many different sizes and spacing configurations, depending on the part that is being broached. Read More…

Gear Hobbing Gear hobbing refers to the process of using a broaching machine to cut the grooves, known as gear teeth, into a component. Machines that cut gear teeth are capable of cutting gears with different numbers and varying sizes of teeth. Gear hobbing is used to make teeth for many different kinds of gears, including spur, crown, helical and worm.
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Leading Manufacturers

Warren, MI  |  586-758-2626

Apex Broaching Systems is a worldwide supplier of standard broaching machines, special purpose broaching machines, fixturing, automation, and cutting tools. We have over 69 years of innovative engineering, skilled craftmanship, quality manufacturing, assembly, and customer satisfaction.

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Apex Broaching Systems $$$

Ypsilanti, MI  |  734-961-0300

American Broach and Machine Company has been a leader in the broaching industry since were founded in 1919, supplying quality products to innumerable customers. We have always offered superior services, like internal broaching, at competitive prices.

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American Broach & Machine Company $$$

Willoughby, OH  |  440-946-1040

For decades Ohio Broach has put back the cutting edge on dulled, unproductive broaches of every size and shape — keyways, splines, squares, hexagons, rounds, serrations and special forms — for companies worldwide

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Ohio Broach & Machine Company $$$

Minneapolis, MN  |  612-729-8301

With 50 years of broaching experience, we have become specialized in manufacturing and engineering of broaches in many shapes and sizes. Our production machining department has complete machining skills.

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Doppler Gear Company $$$

Racine, WI  |  262-639-2272

Production broaching is among the many metal working services we provide. We are a company with longevity and high quality. We are ISO 9001:2000 certified.

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Wiscon Products, Inc. $$$
placeholder image Apex Broaching Systems American Broach & Machine Company Ohio Broach & Machine Company Doppler Gear Company Wiscon Products, Inc.

There are two different kinds of broaches: internal broaches, which are used to cut completely through the material, and external broaches, which are commonly called blind broaches and are used to make indentations and shapes on the surface of a material.

External or blind broaches are used in the gear hobbing process. Gear hobbing machines are used to make components used in various industries, including the aerospace, automotive, construction, hardware and manufacturing sectors.

Gear Hobbing Gear Hobbing - Avon Broach and Production Company

Specific products include the cycloid gears used in clocks and helical gears that are less noisy then most gear systems as well as the most basic gear design, the spur gear and worm gears, which are used in the gearboxes of vehicles and are vital to the engine and transmission productivity.

Gear hobbing machines are fully automated and consist of four major parts: the chuck, which is also known as a clamp and is usually clamping the work-piece horizontally to the vertical hob piece; a tailstock, which supports the sides of the gear being made so that it stays steady while being hobbed; the cylindrical hob, which is what makes the cuts in the gear, has helical cutting teeth itself and is usually mounted on a spindle that is connected to the fourth major part of the hobbing machine, the drive motor.

The hob can be a single thread, double thread or triple thread, depending on how fast productivity is required. These machines can be large or small, depending on what type of gears they are meant to hob.

Small versions can produce gears as small as a fraction of a millimeter or as large as three meters. Gear hobbing as a process provides many advantages, including a high productivity rate, economical and efficient operation, accuracy, close tolerances, versatility and smooth finishes.

Gear Hobbing Informational Video