Single disc without hub, pitch 1/2", 40 teeth

MR Disco 1/2" Z40 is a sprockets and gears reference, within Power transmission. Request a quote for Disco 1/2" Z40 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The Disc 1/2" Z40 is a sprocket with 1/2" pitch and 40 teeth, supplied by MR, manufactured by EMMAR in SAE 1045 steel. It is used in chain drives to convert motion into positive drag on machine shafts. Its simplex design without hub allows mounting it directly on the shaft or adapting it to an existing hub. It is a replacement part for equipment that requires synchronism and wear resistance.

This disc has 1/2" pitch, 40 teeth (z) and is machined in SAE 1045 steel. It is simplex without hub: it does not include a hub or center bore, so it mounts on a shaft or on a disc carrier bushing. The designation Disc 1/2" Z40 identifies the 1/2" pitch series with 40 teeth, a common size in ANSI 40 chain drives.

It is used in conveyors, elevators, machine tools, packaging equipment and transmission systems where a specific speed ratio is needed. It also appears in agricultural implements and in production lines that work with 1/2" pitch chains. As a wheel without hub, it is common in assemblies where the disc is fixed to an existing hub or flange.

To select it, verify that the chain pitch matches the 1/2" pitch and that the number of teeth is adequate for the desired transmission ratio. Check the outer diameter and the center bore of the disc against the equipment drawing. SAE 1045 steel allows the teeth to be hardened for greater durability, depending on use. If the disc is mounted on a bushing, confirm the diameter and the fixing system.

If you need a disc with a different number of teeth, another pitch or with an integrated hub, we can source it or find the equivalent size. Send us the part number MR-DISCO-1-2-Z40 or the designation Disc 1/2" Z40 via WhatsApp and we will quote you. We can also advise you if you have doubts about compatibility with your chain or shaft.

At MR Accesorios Industriales we supply this type of disc and have more than 80 years of experience in power transmission. If you are looking for a simplex disc without hub, 1/2" pitch and 40 teeth, write to us via WhatsApp with the part number and we will send you the quote.