Involute Spline Rotary Broach

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 and involute splines control power transmission by the way contact is designed into the teeth.

Involute 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. Polygon Solutions does stock standard size involute spline rotary broaches. Standard involute spline sizes are listed below.

The size of involute spline forms that can be made by rotary broaching is limited by the amount of material to be removed. Please email us a print to determine if rotary broaching is feasible for your application.

Oversize pilot holes are required for all involute 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.

To request a quote on a Involute Spline Rotary Broach fill out our online quote form or call us at 239-628-4800.

Polygon Solutions offers a wide range of Standard Internal and External Involute Spine Rotary Broaches that are designed to be used individually or as mating parts. All sizes conform to the ANSI B92.1 Standard and are available for fast delivery.

INTERNAL INVOLUTE SPLINE BROACHES 30º Pressure Angle; Side Fit .500″ Diameter x 1.75″ Overall Length			M-2 Part #        Price	PM M-4 Part #         Price	PM T-15 Part #         Price
Nominal Size	# of Teeth	(B) Major Dia.
5/16″	13	.3120″	PI03120B-13    $365	PI03120BP-13   $385	PI03120BT-13    $385
11/32″	15	.3430″	PI03430B-15    $365	PI03430BP-15   $385	PI03430BT-15    $385
3/8″	16	.3740″	PI03740B-16    $365	PI03740BP-16   $385	PI03740BT-16    $385
13/32″	18	.4060″	PI04060B-18    $365	PI04060BP-18   $385	PI04060BT-18    $385
7/16″	20	.4470″	PI04470B-20    $365	PI04470BP-20   $385	PI04470BT-20    $385
15/32″	21	.4680″	PI04680B-21    $365	PI04680BP-21   $385	PI04680BT-21    $385
1/2″	22	.4990″	PI04990B-22    $365	PI04990BP-22   $385	PI04990BT-22    $385
9/16″	25	.5620″	PI05620B-25    $400	PI05620BP-25   $420	PI05620BT-25    $420
5/8″	28	.6240″	PI06240B-28    $400	PI06240BP-28   $420	PI06240BT-28    $420
21/32″	30	.6560″	PI06560B-30    $400	PI06560BP-30   $420	PI06560BT-30    $420
11/16″	31	.6870″	PI06870B-31    $425	PI06870BP-31   $445	PI06870BT-31    $445
3/4″	34	.7490″	PI07490B-34    $425	PI07490BP-34   $445	PI07490BT-34    $445
		These Internal Involute Spline Rotary Broaches can be used with our 1/2″ Series GT Rotary Broach Tool Holder. View Internal Rotary Broach Tool Holders

EXTERNAL INVOLUTE SPLINE BROACHES 30º Pressure Angle; Side Fit .750″ Diameter x 1.10″ Overall Length			M-2 Part #        Price	PM M-4 Part #         Price	PM T-15 Part #         Price
Nominal Size	# of Teeth	(B) Major Dia.
5/16″	13	.2920″	PI02920E-13    $365	PI02920EP-13   $385	PI02920ET-13    $385
11/32″	15	.3330″	PI03330E-15    $365	PI03330EP-15   $385	PI03330ET-15    $385
3/8″	16	.3540″	PI03540E-16    $365	PI03540EP-16   $385	PI03540ET-16    $385
13/32″	18	.3960″	PI03960E-18    $365	PI03960EP-18   $385	PI03960ET-18    $385
7/16″	20	.4370″	PI04370E-20    $365	PI04370EP-20   $385	PI04370ET-20    $385
15/32″	21	.4580″	PI04580E-21    $365	PI04580EP-21   $385	PI04580ET-21    $385
1/2″	22	.4790″	PI04790E-22    $365	PI04790EP-22   $385	PI04790ET-22    $385
9/16″	25	.5420″	PI05420E-25    $400	PI05420EP-25   $420	PI05420ET-25    $420
5/8″	28	.6040″	PI06040E-28    $400	PI06040EP-28   $420	PI06040ET-28    $420
		These External Involute Spline Rotary Broaches can be used with our External Series GT Rotary Broach Tool Holder. View External Rotary Broach Tool Holders