Double sprocket with hub, pitch 3/8", 17 teeth

MR Piñón doble 3/8" Z17 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" Z17 and any equivalents.

This double sprocket with hub runs on 3/8" pitch chain and carries 17 teeth, cut from SAE 1045 steel. Because two toothed rings share one central hub, a single shaft position can drive two chain lines or take on a heavier duty than a single-row sprocket.

Reading the designation is straightforward. "Double sprocket" means two tooth rings machined as one piece with the hub between them, and both rings carry the same tooth count. The 3/8" figure is the chain pitch the sprocket accepts, so the matching chain must be 3/8" pitch. The Z17 tells you there are 17 teeth, which is what sets the ratio once the sprocket is paired with another sprocket or wheel in the drive. The hub is the section that grips the shaft, and how it grips depends on how the equipment was built.

You will find this type of sprocket on agricultural machinery, conveyors, bucket elevators, mixers and other material handling equipment. It also shows up where a drive needs two chain lines, such as dual-branch arrangements or synchronization points. For maintenance teams already running 3/8" pitch chain, it is a routine replacement item: swap the sprocket and leave the rest of the assembly as it is.

Before ordering, confirm the chain pitch is 3/8" and that 17 teeth give you the ratio the drive needs. Then look at the shaft and the hub: keyway, set screw or taper bushing, whichever the design calls for. Alignment between sprockets and correct chain tension matter as well, since misalignment wears both teeth and chain. Where there is room, a sprocket with more teeth lowers speed and raises torque.

If the size you need is different, a double sprocket with another tooth count or another chain pitch can be manufactured. To request an equivalent, send the part number MR-PINON-DOBLE-3-8-Z17 or the full designation together with the pitch, tooth count and required shaft diameter. A photo or a dimensioned sketch of the original part also works. With that information, the team quotes the option that fits your equipment.

Quotes are handled by WhatsApp or email. Send the part number MR-PINON-DOBLE-3-8-Z17 and the order can be coordinated from there. If you are unsure whether the sprocket matches your chain or mounts correctly on the shaft, attach a photo of the assembly and the team will help you check it. MR Industrial Accessories LLC supplies power transmission components for industrial replacement.