Spline Rotary Broach Tool

Spline Rotary BroachPolygon Solutions offers fast delivery on precision ground spline rotary broach tools. Spline and involute spline rotary broach shapes are popular forms used for connecting driven components in machines and vehicles. Typical examples would include gear shifters on motorcycles and clamps for engine shafts. Standard splines control power transmission by the way contact is designed into the teeth.

Spline rotary broach tools can be made to international standards or custom made to your specifications. However, most are made to the customer’s specified dimensions. Due to the wide variety of tolerances, tooth width and custom features, Polygon Solutions cannot stock standard spline broaches.

The size of spline forms that can be made by rotary broaching is limited by the amount of material to be removed. Usually, material removal (or tooth height) is limited to .025” per side. This limitation keeps most spline forms under 1 inch diameter.

Oversize pilot holes are required for all spline form rotary broaching applications. The pilot hole will leave a small radius at the inside corners. This radius is often acceptable because contact is still made at the outside of the form.

Due to manufacturing limitations, there is a small radius on the broach at the inside corner of spline teeth. However, this radius cannot be found in the finished product because the oversize pilot hole diameter removes part material in this area. The oversize pilot hole is critical to creating separated chips while broaching and reducing the pressure required to cut the form.
To request a quote on a Spline Rotary Broach fill out our online quote form or call us at 239-628-4800.

Polygon Solutions’ Rotary Broaching Tools can be used on any lathe or mill.
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