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  Internal and External Involute Splines
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The sides of an internal and external involute spline are equally-spaced grooves and the curve on the tooth flank is involute, as with an involute gear but not as tall. The curves increase the strength by decreasing stress concentrations. There are many different standards in both metric and imperial also including fillet root side fitting, flat root side fitting and major diameter and side fitting. All are still in use today.

A use is to enable one member to slide up and down another member whilst still under driving load. They are also used as a permanent drive when an interference fit is selected.

Our capacity includes a wide range of cutters. Please enquire to check our capability.


Hewitt & Topham Limited, Dyneley Road, Greenbank Business Park, Blackburn BB1 3AB United Kingdom
Tel: +44 (0) 1254 679222  Fax : +44 (0) 1254 680534  Email: sales@hewitt-topham.co.uk


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