Double sprocket with hub, pitch 3/8", 20 teeth

MR Piñón doble 3/8" Z20 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 doble 3/8" Z20 and any equivalents.

This double sprocket with hub is supplied by MR Industrial Accessories LLC. It runs on 3/8" pitch chain and has 20 teeth, so the code 3/8" Z20 tells you both the chain size and the tooth count. The hub gives you a mounting surface on the shaft with room for the fastening method. Two rows of teeth in one piece let you drive two chains side by side or split the motion between two lines without adding a second sprocket.

The sprocket is made of SAE 1045 steel. The pitch (3/8") must match your chain, and the 20 teeth set the ratio between the sprocket and the chain. Because it is a double sprocket, you get two toothed rows in a single part, which keeps the assembly compact. The hub is the raised center section that fits over the shaft; it provides the space needed for a key, set screw, or taper bushing, depending on your design.

You will find this size in low and medium power drives such as agricultural equipment, conveyors, packaging lines, lifting mechanisms, and general transmission systems. It also works where you need to duplicate the output or keep two parallel chains synchronized. With proper mounting and lubrication, it handles dusty, vibrating, or moderately loaded conditions.

When selecting a replacement, check the chain pitch (3/8"), the number of teeth (20), and the shaft diameter. The hub dimensions must match your shaft and fastening system. Also verify alignment between sprocket and chain, and set the tension recommended for your drive to avoid early wear. If the sprocket runs in a gearbox or at high speed, ask about balancing and available heat treatment.

For an equivalent, send the complete part number or the exact designation. We can look at options with a different tooth count, hub style, or material, as long as the 3/8" pitch stays the same. We also carry single sprockets and other toothed wheels. Tell us which chain you use and your shaft dimensions, and we will help you find the right fit.