H 075 timing pulleys (3/4" belt)

H 075 timing pulleys are designed for H belts with a pitch of 1/2" (12.7 mm) and a width of 3/4" (19.1 mm). It is the narrowest width of the H profile, chosen for moderate-power drives where a narrow, compact installation matters.

H 075 timing pulley - narrow, light and easier on the bearings

A narrow pulley takes up little space on the shaft and is lighter than wider equivalents, and an H 075 belt puts less load on the bearings. At the same time you keep all the advantages of the H profile: slip-free running, no lubrication and a wide choice of ratios. Smaller pulleys are made of C45 steel, and larger ones of grey cast iron. A narrower belt also means lower tension forces acting on the shafts.

H 075 synchronous pulleys: pilot bore and Taper-Lock

H 075 pulleys with a pilot bore, collected in the Pilot bore subgroup, and the Taper-Lock subgroup. The dimensions of each pulley are given on the product page.

Questions and answers: H 075 timing belt pulleys

Can a wider belt run on an H 075 pulley?

No. A belt wider than the pulley would overhang the rim and work with only part of its width, which would quickly destroy it. For a 1" belt, choose a pulley from the H 100 group.

How does an H 075 pulley differ dimensionally from an H 100?

With the same number of teeth, both have the same diameter and meshing - they differ only in rim width, matched to the belt width.