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

MR Disco 1/2" Z40 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 Disco 1/2" Z40 and any equivalents.

The Disc 1/2" Z40 is a hubless simplex sprocket with a 1/2" pitch and 40 teeth, supplied by MR and manufactured by EMMAR from SAE 1045 steel. It transfers motion to machine shafts in chain drives, providing positive engagement. Because it has no hub or center bore, it can be mounted directly on a shaft or fitted to an existing hub or disc carrier.

Key specifications: pitch 1/2", tooth count 40 (z), material SAE 1045 steel, and a simplex, hubless configuration. The part number MR-DISCO-1-2-Z40 and the designation Disc 1/2" Z40 both identify this size, which corresponds to the 1/2" pitch series commonly used with ANSI 40 chain.

Typical applications include conveyors, elevators, machine tools, packaging machinery, and transmission systems that require a specific speed ratio. It also appears in agricultural implements and production lines running 1/2" pitch chain. In assemblies where the disc is bolted to an existing hub or flange, this hubless style is a frequent choice.

When selecting, confirm that the chain pitch is 1/2" and that 40 teeth give the transmission ratio you need. Compare the outer diameter and center bore against your equipment drawing. SAE 1045 steel can have its teeth hardened for greater durability depending on the application. If the disc mounts on a bushing, verify the bushing diameter and fixing method.

If you require a different tooth count, another pitch, or a version with an integrated hub, we can source it or suggest an equivalent size. Send the part number MR-DISCO-1-2-Z40 or the designation Disc 1/2" Z40 via WhatsApp or email, and our team will reply promptly with a quote. We can also help if you are unsure about compatibility with your chain or shaft.