Single sprocket with hub, pitch 1/2", 39 teeth

MR Piñón simple 1/2" Z39 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 1/2" Z39 and any equivalents.

This simplex sprocket with hub is identified by the part number MR-PINON-SIMPLE-1-2-Z39. It has a 1/2" pitch and 39 teeth, and it is made of SAE 1045 steel. The hub lets you mount it directly on the shaft, so no extra bushing is needed. It is used to transmit torque in chain drives.

The sprocket is a simplex type with an integrated hub. Key specifications: pitch 1/2", teeth 39, material SAE 1045 steel. The hub is the raised center section that fits over the shaft; its bore matches the shaft diameter. SAE 1045 is a medium-carbon steel that handles moderate to high mechanical loads.

Common uses include chain drives in conveyors, packaging equipment, lifting systems, agricultural machinery and production lines. Because the pitch is 1/2", it meshes with 1/2" pitch chains such as ANSI 40 or equivalent. You can install it in new assemblies or as a replacement for a worn sprocket, provided the pitch and tooth count stay the same to keep the original ratio.

When mounting, confirm that the shaft diameter matches the hub bore and that the key or fastening method is in good shape. Align the sprocket with the other drive components to prevent uneven wear. For selection, consider the power to be transmitted, the rotation speed and the operating environment. If you need a different ratio, choose another tooth count within the same pitch.

To find an equivalent, send the part number MR-PINON-SIMPLE-1-2-Z39 or the original sprocket data: pitch, number of teeth, shaft diameter and hub type. With that we can identify the correct part or suggest a compatible alternative. We can also advise on bore modifications or surface treatments.

For a quote on this sprocket or other sizes, send the part number by WhatsApp or email. Our team responds promptly with the technical information you need and can help you choose the right component for your application.