The Prusa i3 MK2 uses a 623h for the y idler.
Where can I buy it?
I haven't found it anywhere online.

Edited 1 time(s). Last edit at 02/12/2017 10:08PM by igel.

perhaps [www.aliexpress.com]

but I don’t have dimensions for the 623h to check its right.

Or even better, pick your size

[www.aliexpress.com]

Edited 1 time(s). Last edit at 02/13/2017 04:31AM by Dust.

Exactly what I was looking for. Thanks!