Author Topic: Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage (Read 21 times)

Jim · « **on:** July 23, 2026, 10:24:46 pm »

I've posted up photos before of hobbed pulley drives. It's a process that works very well and gives a professional result (very similar to what Wilesco does on their drive pulleys). I've done well over a hundred brass and aluminium drive pulleys now.

Here's a vid I did a few years ago of the process -

Stoker · « **Reply #1 on:** July 24, 2026, 06:55:32 pm »

Hey Jim .... seen your hobbing plenty of times and think it is really great, though I rarely experience any serious belt slip, but then I don't run very load heavy accessories much. Really need to build myself a Baker Fan some one of these days ... but I digress.

What I would like to ask you is what sort of pulley groove do you prefer to do your hobbing on. I realize it can be done on most any form of groove, but am wondering what you find works best a slightly flared U-shaped groove or a V-shaped groove? If you prefer a V-shaped groove, what angle do you find most effective, 90, 120 or some other degree of divergence???

skeptic49 · « **Reply #2 on:** 10 hours ago »

I enjoyed your video. I only wish i had the equipment and skills to use a lathe, etc.

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Author Topic: Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage (Read 21 times)

Jim

Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage

Stoker

Re: Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage

skeptic49

Re: Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage