
Single disc without hub, pitch 1/2", 15 teeth
- Brand
- MR
- Category
- Power transmission
- Subcategory
- Sprockets and gears
- Series
- paso 1/2"
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Description
MR Disco 1/2" Z15 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" Z15 and any equivalents.
A hubless simplex sprocket disc that mounts straight onto a shaft or an existing hub, the Disc 1/2" Z15 from MR handles the drive link between shafts where a fixed speed ratio is required and space around the sprocket is tight. It is cut from SAE 1045 steel in a 1/2" pitch with 15 teeth. Maintenance and purchasing teams order it by part number MR-DISCO-1-2-Z15.
Reading the designation is straightforward: 1/2" is the chain pitch, Z15 is the tooth count, and "disc without hub" tells you there is no boss cast or machined into the body. Because of that, the disc relies on a bushing, key or other securing method to lock it to the shaft, or it can be fitted into a hub that is already part of the machine. SAE 1045 carbon steel gives the disc the strength and machinability expected in general power transmission work.
Roller chain drives on conveyors, packaging lines, lifting equipment and agricultural machinery are common homes for this disc, particularly in compact assemblies where a hub would add unwanted width. It also works well as a drop-in replacement when an existing sprocket carries the same 1/2" pitch and 15-tooth count.
Before mounting, confirm that the chain pitch and tooth count match the rest of the drive, then check shaft diameter and fastening compatibility. Since the disc has no hub, plan for the bushing, key or locking arrangement it will need. Verify sprocket alignment and chain tension, and if you are replacing an original part, compare dimensions against it first. For a different tooth count or a hub version, MR can point you to the right item in the power transmission line.
Send the part number MR-DISCO-1-2-Z15 through WhatsApp or email and the team will come back with a quote, suggest equivalents, or help you choose the correct disc for your machine.
Dimensions
- Pitch
- 1/2"
- Teeth (z)
- 15
- Material
- SAE 1045 steel
- Type
- Single disc without hub
Frequently asked questions
- Can the Disc 1/2" Z15 replace a 15-tooth sprocket with 1/2" pitch?
- It can, provided the original is also a simplex disc without hub with the same 1/2" pitch and 15 teeth. Check shaft diameter and how the part is secured. If anything is unclear, send a photo or the measurements and the team will advise.
- What material is used for this disc?
- SAE 1045 steel. It is a carbon steel with good strength and machinability, suited to general industrial power transmission. Further machining is possible if your application calls for it.
- Can I request a different tooth count or a disc with hub?
- Yes. MR supplies sprockets and toothed wheels, so a different number of teeth, another pitch or a hub-type disc can be quoted. Send the part number MR-DISCO-1-2-Z15 via WhatsApp or email and describe the variant you need.

