Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
608 Flat Belt Idler Pulley
A 68 mm OD flanged flat idler pulley that runs on two press-fit 608 bearings (22.05 mm pockets, 7 mm deep, top and bottom) instead of a molded plastic sleeve, with a 16 mm flat belt face sized for 1/2 in V-belt backsides and 4 mm flanges to keep the belt tracking. Replaces seized or shattered deck/tensioner idlers on mowers, snowblowers and belt-driven robot drivetrains; ribbed rim and hub keep it under ~40 cm³ and print it without supports.
GT2 60T Pulley 8 mm Bore
A 60-tooth GT2 timing pulley (2 mm pitch, 37.7 mm tooth OD, 41.7 mm flanges) with an 8.3 mm slip-fit bore for 8 mm shaft and a split-clamp hub tightened by a single M3 screw against a captured M3 nut. 22 mm tall with a 7 mm flanged belt land for 6 mm GT2 belt — the big reduction pulley you can't buy off-the-shelf in 8 mm bore.