Pulley Spacers I'm looking to stack 20T idler pulleys on a 5mm shaft. I've tried sticking washers of all different types between them, but they're loose on the shaft and the OD is too big, therefore rubbing on the aluminium pulley flange. I've printed 5x6x1 spacers in ABS and they fit fine, but I'd really prefer to use something that's a precision fit in metal. There are RC car shims that will do it but they're expensive, and generic machining shims are 9mm OD which rubs as well. I'd really love something that is metal, even aluminium, and just fits. Anyone got a supplier or recommendation? https://reprap.org/forum/read.php?14,686540,686540#msg-686540 Mon, 07 Sep 2026 02:15:27 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?14,686540,710683#msg-710683 Re: Pulley Spacers https://reprap.org/forum/read.php?14,686540,710683#msg-710683 www.gear-gears.com]]> leochinese Mechanics Thu, 29 Sep 2016 23:20:19 -0400 https://reprap.org/forum/read.php?14,686540,690876#msg-690876 Re: Pulley Spacers https://reprap.org/forum/read.php?14,686540,690876#msg-690876
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FA-MAS
If 7mm od would work, you could use shims from Misumi

http://us.misumi-ec.com/vona2/detail/110300237240/?Inch=0

Thanks for that.

My god that's one difficult and complicated website, but I'll order some of these and see how it goes.]]> hobbymods Mechanics Thu, 21 Jul 2016 23:49:30 -0400 https://reprap.org/forum/read.php?14,686540,690842#msg-690842 Re: Pulley Spacers https://reprap.org/forum/read.php?14,686540,690842#msg-690842
http://us.misumi-ec.com/vona2/detail/110300237240/?Inch=0]]> blt3dp Mechanics Thu, 21 Jul 2016 17:25:51 -0400 https://reprap.org/forum/read.php?14,686540,687138#msg-687138 Re: Pulley Spacers https://reprap.org/forum/read.php?14,686540,687138#msg-687138 Dalius98 Mechanics Fri, 15 Jul 2016 12:33:00 -0400 https://reprap.org/forum/read.php?14,686540,687001#msg-687001 Re: Pulley Spacers https://reprap.org/forum/read.php?14,686540,687001#msg-687001 Mikk36 Mechanics Fri, 15 Jul 2016 03:31:38 -0400 https://reprap.org/forum/read.php?14,686540,686584#msg-686584 Re: Pulley Spacers https://reprap.org/forum/read.php?14,686540,686584#msg-686584 openbuildspartstore.com].

5mm ID, 10mm OD (is that any good), and a range of lengths from 3 to 40mm. If 10mm OD is too big, I guess you could use a single washer on top to stop it rubbing.

Edit. They do what they call precision shims as well which are 1mm thick.]]> deckingman Mechanics Thu, 14 Jul 2016 07:48:52 -0400 https://reprap.org/forum/read.php?14,686540,686540#msg-686540 Pulley Spacers https://reprap.org/forum/read.php?14,686540,686540#msg-686540
I've tried sticking washers of all different types between them, but they're loose on the shaft and the OD is too big, therefore rubbing on the aluminium pulley flange.

I've printed 5x6x1 spacers in ABS and they fit fine, but I'd really prefer to use something that's a precision fit in metal.

There are RC car shims that will do it but they're expensive, and generic machining shims are 9mm OD which rubs as well.

I'd really love something that is metal, even aluminium, and just fits.

Anyone got a supplier or recommendation?]]> hobbymods Mechanics Thu, 14 Jul 2016 04:21:17 -0400