Single sprocket with hub, pitch 3/8", 38 teeth

MR Piñón simple 3/8" Z38 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 simple 3/8" Z38 and any equivalents.

This sprocket has a single row of teeth and a central hub for direct shaft mounting. With a 3/8" pitch and 38 teeth, it sits in the medium ratio range, making it a common choice for moderate speed reduction where reliable engagement is needed. To request a quote, send the code MR-PINON-SIMPLE-3-8-Z38 via WhatsApp.

The sprocket is made from SAE 1045 steel, a medium-carbon grade that can be machined and heat treated. Its 38 teeth and 3/8" pitch define the chain it accepts and the ratio it produces when paired with another sprocket. The hub is the raised central section that mounts on the shaft, giving more contact area than a flat plate sprocket.

You will find this size in chain drives on agricultural equipment, conveyors, packaging lines, automatic doors and light lifting devices. It also appears on gearmotor output shafts and intermediate shafts in machine tools, where an intermediate reduction between the driver and driven sprocket is required.

When selecting a replacement, check the chain pitch, the number of teeth on the mating sprocket, the center distance and the shaft diameter. The hub bore and keyway must match the shaft; if they do not, a bushing can be machined or the hub modified. Also verify alignment between sprockets and proper chain tension, since misalignment speeds up wear on both teeth and chain.

For an equivalent, send the existing code, a photo of the sprocket and the shaft, and the pitch and shaft measurements. We can also help you decide whether a plate sprocket would work better than a hub type, depending on the space in your equipment.

To request a quote for this simplex sprocket 3/8" Z38, send the code MR-PINON-SIMPLE-3-8-Z38 via WhatsApp or email. If you are unsure about the number of teeth or mounting, contact us and we will assist you with the data from the product page.