Double sprocket with hub, pitch 1/2", 28 teeth

MR Piñón doble 1/2" Z28 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 doble 1/2" Z28 and any equivalents.

This EMMAR double sprocket with hub, identified as 1/2" Z28, is built for drives that need two chain rows on one shaft-mounted body. The 1/2" pitch and 28 teeth set the drive ratio, while the central hub provides the mounting surface. It is made in SAE 1045 steel and belongs to the power transmission line MR supplies for industrial equipment.

The Z28 designation points to the tooth count, and the 1/2" value is the chain pitch. What sets this part apart from a single-row sprocket is the pair of tooth rows plus the hub: two chains can run side by side on the same body, or a double-pitch chain can be used, depending on how the drive is laid out. MR supplies this sprocket for both new builds and replacement work where the original pitch and tooth count must be matched.

You will find this size in chain drives on production machinery, conveyors, elevators, packaging lines and general drive systems, as well as in agro-industrial operations and process plants that need a drive that is straightforward to service. It can go into new equipment or take the place of a worn sprocket as long as the 1/2" pitch and 28 teeth are kept.

When selecting the sprocket, confirm three things: the chain pitch, the number of teeth and the shaft diameter it will sit on. The hub is secured with a key or a set screw, following the equipment design. Check that sprocket and chain are aligned, that lubrication is adequate and that tension is correct, since these points drive tooth wear. In dusty or damp locations, plan for suitable lubrication and periodic inspection of the teeth.

For an equivalent, the quickest route is to send the exact code of the sprocket being replaced, a photo of the part or the equipment data. Pitch, tooth count and mounting type are enough for us to point you to the right variant. We can also review whether a single-row, double-row or different hub size within the same 1/2" pitch line fits better.

To request a quote for this double sprocket 1/2" Z28 or to ask about other sizes, send the code by WhatsApp to MR Industrial Accessories. We reply with the technical information and a quote. If you are unsure about an equivalent from another brand or need a custom part, write to us and we will help.