Single sprocket with hub, pitch 3/4", 12 teeth

MR Piñón simple 3/4" Z12 belongs to sprockets and gears, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for Piñón simple 3/4" Z12 and any equivalents.

A hub-type simplex sprocket for 3/4" pitch roller chain drives, this 12-tooth unit is supplied by MR Industrial Accessories. The toothed rim and hub are one piece, and the hub bore mounts on the shaft, held either by a key or a set screw depending on how the equipment is built. It suits conveyors, elevators and agricultural or industrial machines running this chain pitch. SAE 1045 steel gives the teeth the wear and load behavior expected in normal drive duty.

Key figures to check against your application: pitch 3/4", tooth count 12, material SAE 1045 steel, hub-type simplex body. Because the hub is integral with the toothed section, there is a broader seating surface at the shaft and room for a keyway or set screw fastening. Drives using 3/4" pitch roller chain, typically medium speed and moderate load, are the natural fit.

You will see this sprocket on belt and roller conveyors, bucket elevators, farm implements, packaging lines and general plant drive systems. It also works as a replacement on lines already set up for 3/4" pitch chain. Before installing, confirm the chain pitch and the sprocket pitch are the same; a mismatch causes skipping and rapid wear.

When selecting, work from the tooth count, the shaft diameter and the fastening style the hub accepts. A shaft smaller than the bore can be handled with a bushing or sleeve, as long as concentricity is maintained. Check sprocket-to-chain alignment as well, since angular or parallel offset shortens the life of both parts. Lubrication and correct chain tension matter just as much.

Other tooth counts, hub diameters or pitches can be sourced, or an equivalent size located, if the standard unit does not match your equipment. Send the part number MR-PINON-SIMPLE-3-4-Z12 or the complete designation through WhatsApp and the team will quote it and help confirm compatibility with your chain and shaft mounting.