Single sprocket with hub, pitch 3/8", 31 teeth

MR Piñón simple 3/8" Z31 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" Z31 and any equivalents.

A one-piece simplex sprocket with an integrated hub, made by EMMAR in SAE 1045 steel. Because the hub is machined as part of the sprocket, it mounts straight onto the shaft and cuts down the number of components in the assembly. It suits drives that call for a defined ratio and steady resistance to wear.

The part is listed as Simplex sprocket 3/8" Z31 and carries the code MR-PINON-SIMPLE-3-8-Z31. Three values define it: a 3/8" pitch, 31 teeth, and SAE 1045 steel as the material. Reading the designation in that order lets a maintenance planner confirm the chain size, the ratio and the construction in a single pass through the catalog.

Typical installations are 3/8" pitch chain drives on agricultural equipment, conveyors, packaging lines and motion systems inside industrial plants. These are positions where a moderate ratio is enough and the sprocket has to hold up under loads that vary through the shift. The same sprocket also works as a drop-in replacement on machines that already run this chain pitch.

Selection comes down to three checks. First, the chain pitch has to be 3/8". Second, the tooth count has to give the ratio the drive needs. Third, the hub diameter and its fastening method have to match the shaft. SAE 1045 steel provides solid mechanical strength and responds well to hardening, though the heat treatment actually applied depends on how the part will be used. Send us the equipment data if any of these points is unclear.

For a sprocket with a different tooth count, another pitch or another size, message us with the code MR-PINON-SIMPLE-3-8-Z31 or simply describe what you need. Quotes are requested by part number through WhatsApp or email, and our team answers quickly, suggests equivalent options and helps you confirm the choice.

MR Industrial Accessories LLC serves customers throughout the United States and in several Latin American countries, supplying bearings, mounted units and housings, power transmission parts, seals, lubrication and maintenance tools. Split plummer block housings, roller chains and sheaves come from our own manufacturing.