Single sprocket with hub, pitch 3/8", 42 teeth

MR Piñón simple 3/8" Z42 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" Z42 and any equivalents.

The simplex sprocket 3/8" Z42, part number MR-PINON-SIMPLE-3-8-Z42, is a 42-tooth sprocket with hub made from SAE 1045 steel. Its 3/8" pitch suits compact drives that need smooth, quiet motion, and the 42-tooth count makes it a common choice on the driven side when you want to reduce speed or multiply torque. MR supplies this sprocket to maintenance and purchasing teams across the United States and Latin America, and you can request a quote by part number through WhatsApp or email.

Key specifications: pitch 3/8", teeth 42 (z), material SAE 1045 steel, simplex type with hub. The hub is a central extension wider than the toothed plate; it gives the sprocket a larger seating surface on the shaft and allows fastening with a key, set screw or other method as required. Compared with a flat plate sprocket, that extra support helps the assembly stay stable under variable loads. The 3/8" pitch belongs to the light chain family often found in small, space-saving drives.

Because of its 42 teeth, this sprocket is typically used as the driven member in reduction drives: light conveyors, feeders, small mixers, packaging equipment, automatic gates and low-power transmissions. Pairing it with a smaller drive sprocket produces a moderate reduction ratio. In continuous service, the SAE 1045 steel construction resists wear when lubrication is kept up.

During installation, confirm that the shaft diameter matches the hub bore and that the key or fastening screw sits correctly. Check alignment between this sprocket and the mating sprocket; angular or parallel misalignment speeds up wear on both teeth and chain. Set chain tension carefully—too tight and you load the shaft bearings. With a 42-tooth sprocket, also verify chain length to prevent skipping.

To get a quote, send the details you have: pitch, number of teeth, shaft diameter and hub type. We can locate an equivalent in our sprocket line or review a custom manufacturing option. If the sprocket will run with a specific ANSI chain, we can help you confirm compatibility. The more complete your information, the faster we can respond.

For this simplex sprocket 3/8" Z42, quote part number MR-PINON-SIMPLE-3-8-Z42 via WhatsApp or email. If you are building a complete drive, ask about the chain, supports and lubricants that suit this type of assembly. We will reply with a quote and the alternative that best fits your needs.