Most the parts are available through mcmaster carr www.mcmaster.com

NOTE: this is a partial list:

(1) torsion spring: 9271K131
(2) 60t spur gear: 6325K9
(1) 30t spur gear: 6325K39
(1) revolving handle: 6308K46
(2) 60lb. gas spring: 9416K15
(2) bushing: 6338K436
(6) bearing: 57130262

The sprockets and chain because they are common #40 roller chain sprockets 10t, 20t and a 13t idler

To download a AutoCAD DWG file of the sliproll, right click on the icon below and select 'Save Target As" from the popup menu.

This hand made slip-roll was created by Jason of Grand Junction Colorado.

This information was taken from the HOBART Weld Talk forum.