Single sprocket with hub, pitch 3/8", 12 teeth

MR Piñón simple 3/8" Z12 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" Z12 and any equivalents.

A hub-style simplex sprocket built for 3/8" pitch chain, identified as MR-PINON-SIMPLE-3-8-Z12. With 12 teeth (Z12) and a body in SAE 1045 steel, it drives chain runs where a defined reduction ratio is needed, and the hub gives a solid seat on the shaft.

Reading the code helps when ordering: the simplex layout means a single row of teeth, 3/8" is the chain pitch, and Z12 is the tooth count. The hub lets the sprocket sit directly on the shaft and be locked with a keyway or a set screw, depending on how the equipment is built. SAE 1045 steel gives the tooth profile the wear resistance and toughness expected in daily power transmission work.

Typical installations include agricultural drives such as seeders and harvesters, chain conveyors, elevators, and drive trains in processing plants. Material handling equipment and production lines that run at a fixed ratio are also common homes for this size. The 12-tooth configuration suits moderate speeds with medium loads.

Before ordering, check three things: the chain pitch (3/8"), the number of teeth (12), and the shaft diameter where the part will be mounted. Confirm the hub dimensions match your shaft and that the fastening method — keyway, set screw or interference fit — fits the design. Aligning the sprockets and setting chain tension as the equipment maker advises keeps wear down.

If your application calls for a different tooth count, another hub diameter or a different material, send the details and the team can review alternatives and adaptations. Quotes are handled by WhatsApp or email using the part number MR-PINON-SIMPLE-3-8-Z12, and equivalents can be suggested when a direct match is not what you need.