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

MR Piñón simple 3/8" Z42 is a sprockets and gears reference, within Power transmission. Request a quote for Piñón simple 3/8" Z42 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The simplex sprocket 3/8" Z42 is an SAE 1045 steel sprocket with hub, supplied by MR Accesorios Industriales. It is used to transmit motion in 3/8" pitch chains, a small pitch that allows smooth and quiet transmission ratios. With 42 teeth, it is one of the largest sizes in that series, so it is chosen when speed reduction or torque multiplication is needed at the driven end. If you need to replace it or build a new drive, send us the part number and we will quote it.

This sprocket has 3/8" pitch and 42 teeth (z). It is made of SAE 1045 steel and is of simplex type with hub, that is, with a central hub that allows it to be mounted on a shaft and fastened with a screw, key or set screw as applicable. The hub gives it more support surface than a flat plate sprocket, which helps the assembly run more stably when there are variable loads. The 3/8" pitch is used in light chains, the kind found in compact drives.

Typical applications of a 3/8" pitch sprocket with 42 teeth are in machines where speed reduction is needed: light conveyors, feeders, small mixers, packaging equipment, automatic gates and low-power drives in general. It is also used as a driven sprocket in systems where the drive sprocket is smaller, to achieve a moderate reduction ratio. Being made of SAE 1045 steel, it resists wear well in continuous service with adequate lubrication.

To mount it, verify that the shaft diameter matches the hub bore and that the key or fastening screw is properly seated. The alignment between the sprocket and the driven sprocket must be careful: angular or parallel misalignment accelerates wear on teeth and chain. Also check the chain tension; if it is too tight, it stresses the shaft bearings. In drives with 42 teeth, it is advisable to check that the chain has the right length to avoid skipping.

If you cannot find the exact part number or need a nearby size, send us the data you have: pitch, number of teeth, shaft diameter and hub type. With that, we look for the equivalent within the line of sprockets we carry or evaluate the manufacture of a custom part. We can also guide you if the sprocket will work with a specific ANSI chain. The more complete the information, the faster we can give you a useful answer.

To request a quote for this simplex sprocket 3/8" Z42, send the part number MR-PINON-SIMPLE-3-8-Z42 via WhatsApp to MR Accesorios Industriales. If you are building a complete drive, take the opportunity to ask about the chain, supports and lubricants that go with this type of assembly. We will reply with the quote and the alternative that best fits what you need.