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

MR Piñón simple 1/2" Z28 is a sprockets and gears reference, within Power transmission. Request a quote for Piñón simple 1/2" Z28 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The simplex sprocket with hub, 1/2" pitch and 28 teeth is a chain drive sprocket, by EMMAR Accesorios Industriales in SAE 1045 steel. It is used to transmit motion between parallel shafts in industrial machines and equipment, and its hub allows it to be mounted directly on a keyed shaft. MR supplies it, which provides continuity to the kinematic chain and facilitates replacement of the part.

This item is a simplex sprocket with hub, 1/2" pitch and 28 teeth, machined in SAE 1045 steel. The 1/2" pitch corresponds to ANSI 40 chain and defines the distance between tooth centers; the 28 teeth determine the transmission ratio when combined with another sprocket of the same chain. The hub is the central part that mounts on the shaft, with a keyway to secure the part and prevent relative rotation. MR supplies it with dimensional control so that it engages without jumping or premature wear.

It is used in chain drives of machine tools, conveyors, mixers, elevators and process equipment. It also appears in low and medium speed drives where a specific transmission ratio and quick replacement are needed. As it is a wear component, it is advisable to have the pitch and number of teeth identified to order the replacement without errors. It is commonly found in production lines that have already standardized the 1/2" pitch.

To select it, verify that the chain pitch matches that of the sprocket and that the number of teeth is suitable for the ratio you are looking for. Check the shaft diameter and the keyway of the hub before mounting, and check the alignment between sprockets to avoid lateral loads. Proper lubrication and tensioning of the chain prolong the life of the assembly. If the shaft has a different size, a custom hub sprocket or an adapter bushing can be evaluated.

If you need an equivalent or a nearby size, send us the code MR-PINON-SIMPLE-1-2-Z28 or the details of the sprocket you are replacing: pitch, number of teeth, shaft diameter and hub type. With that data we can look for an alternative within the line we supply or suggest machining a similar part. We can also advise you if the drive works with simplex or multiple chain.

To request a quote for this simplex sprocket 1/2" Z28, write to us via WhatsApp and send us the code. If you have doubts about compatibility with your chain or mounting on the shaft, send a photo or the drawing and we will review it. MR Accesorios Industriales supplies power transmission components with more than 80 years of experience, and responds with the technical information you need to decide.