August 28, 2020

Down to the basics: Hobbing

Over the next couple weeks, we’re going to go over the six, basic machine processes that go into making our parts; Turning, Hobbing, Milling, Tapping, Boring and Broaching.

Although there are numerous post-production steps that go into finishing a Profile Racing part, this is where it starts.

Up Second: Hobbing

Profile’s current Hobbing tool that cuts splines into our 48 spline spindles: two sizes, 19mm and 22mm.

Hobbing is the action of gear cutting; both the Hobbing tool and part move in synch, if not, the splines can become twisted like a barber pole.

A Profile Racing, 19mm, 48 splined spindle after both end have been hobbed.

The Hob Tool goes through 1200 Chromo Spindles and or 720 Titanium spindles before needing to be re-sharpened. In this photo, a sharpened tool is on the left, and a dull tool is on the right.

Next week, Milling.

Thanks for the continued support.

August 28, 2020


We are taking precautions to protect our employees and follow CDC and state guidelines. In the meantime, our machine shop is still running, we're here to assist you and we'll be shipping product to help support bike shops during this difficult time.