Single sprocket with hub, pitch 3/8", 18 teeth

MR Piñón simple 3/8" Z18 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" Z18 and any equivalents.

For chain drives that call for a single-row sprocket with a built-in hub, this 3/8" pitch, 18-tooth simplex sprocket in SAE 1045 steel is a straightforward choice. The hub lets you mount it directly on a shaft, and the 18 teeth set the ratio between the driving and driven sides. It works with 3/8" pitch chain and is suited to equipment where alignment and simple maintenance matter.

The designation Simplex sprocket 3/8" Z18 tells you the essentials: simplex means one row of teeth, 3/8" is the chain pitch (the distance between pin centers), and Z18 is the tooth count. The part number to reference is MR-PINON-SIMPLE-3-8-Z18. Because the hub is integrated, the sprocket mounts on a shaft and is secured with the appropriate key or fastening method.

Typical uses include chain drives in agricultural machinery, transport equipment, production lines and lifting systems. It pairs with 3/8" pitch chain to transmit power between parallel shafts, particularly where you need to reduce or increase speed. The SAE 1045 steel construction handles demanding settings with dust, vibration or variable loads, and it is common on equipment running at moderate speeds.

When installing, confirm that the shaft diameter matches the hub bore and that the key or fastening system is in good condition. Align this sprocket with the driven sprocket to prevent uneven wear on the chain and teeth. Keep the chain properly lubricated and tensioned to get the most from the assembly. For selection, look at the required ratio, the chain pitch and the load conditions.

If you need an equivalent, send the part number MR-PINON-SIMPLE-3-8-Z18 or the pitch, tooth count and hub type. We can also help if you need a different number of teeth or another chain pitch. Quotes are handled by WhatsApp or email, and the team can suggest alternatives and assist with choosing the right sprocket for your application.