Single sprocket with hub, pitch 3/4", 39 teeth

MR Piñón simple 3/4" Z39 is a sprockets and gears reference, within Power transmission. Request a quote for Piñón simple 3/4" Z39 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The plain sprocket with hub, 3/4" pitch and 39 teeth is a power transmission component that mounts on the shaft and meshes with a 3/4" pitch chain. Its integrated hub allows it to be secured with a set screw or key, depending on the equipment design. It is used in conveyors, elevators, mills and agricultural machinery that requires specific transmission ratios. MR manufactures it in SAE 1045 steel, with machined teeth for even meshing and uniform wear.

This item is a plain sprocket with hub with 3/4" pitch and 39 teeth, made by EMMAR in SAE 1045 steel. The hub is the central protruding part that allows mounting on the shaft, with space for the fastening system. The 3/4" pitch indicates the distance between the chain roller axes; with 39 teeth, a transmission ratio is achieved that combines speed and torque for medium-load applications. The SAE 1045 material offers good wear resistance and toughness for continuous service.

Typical applications include chain conveyors, bucket elevators, mills, mixers and agricultural equipment. In these systems, the sprocket transmits motion from the drive or driven shaft, and the hub facilitates mounting and alignment. It is commonly found in production lines where a specific transmission ratio is required and the component needs to be replaced without modifying the rest of the assembly.

To select correctly, verify that the chain pitch matches the 3/4" pitch and that the number of teeth is compatible with the desired ratio. The hub must have the appropriate shaft diameter and fastening system (key or set screw) according to the design. During mounting, align the sprocket with the chain wheel to avoid irregular wear and noise. Proper lubrication extends the service life of the teeth.

If you need a sprocket with a different number of teeth, another pitch or a different hub size, we can manufacture it or find an equivalent. To do so, send us the current part number, the number of teeth, the pitch and the shaft dimensions. With that data we will quote the most convenient option. We can also advise you if you have doubts about compatibility with your chain.

To request a quote for this plain sprocket 3/4" Z39 or ask about a nearby size, write to us on WhatsApp at MR Accesorios Industriales. Provide the part number MR-PINON-SIMPLE-3-4-Z39 and the quantity you need. We will reply with the manufacturing alternatives.