Single sprocket with hub, pitch 1/2", 9 teeth

MR Piñón simple 1/2" Z9 is a sprockets and gears reference, within Power transmission. Request a quote for Piñón simple 1/2" Z9 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The plain sprocket with hub, 1/2" pitch and 9 teeth, is a chain drive sprocket sold by MR, made by EMMAR in SAE 1045 steel. It is used to transmit motion between parallel shafts in industrial machines and equipment, where a short transmission ratio and simple shaft mounting are required. Its hub allows it to be fixed with a set screw or key, depending on the shaft machining. It is a wear part that should be checked periodically.

This item is a plain sprocket with hub, 1/2" pitch and 9 teeth (z=9), sold by MR, made by EMMAR in SAE 1045 steel. The 1/2" pitch corresponds to ANSI 40 chain, and the number of teeth defines the transmission ratio: the fewer the teeth, the higher the speed on the driven shaft and the lower the available torque. The hub is the central part that rests on the shaft and allows mounting with a set screw or key. MR sells it and guarantees the material and machining.

It is used in chain drives of agricultural machines, conveyors, mixers, elevators and material handling equipment. It also appears in factory implements and machine tools where a simple reduction or multiplication is needed. Because of its compact size and its hub, it is common on small-diameter shafts and in spaces where a larger-diameter wheel does not fit. It is a wear part: it is advisable to check chain elongation and the condition of the teeth.

To select it correctly, take into account the chain pitch (1/2"), the number of teeth (9) and the diameter of the shaft on which it is mounted. Check that the hub has the right bore diameter and the fastening system (set screw or key) compatible with your shaft. Alignment between sprocket and wheel must be careful to avoid premature wear. If the sprocket runs at high speeds, check balancing and lubrication. If in doubt, consult MR.

If you need a sprocket with a different number of teeth, another pitch or a nearby size, send us the part number or designation by WhatsApp. We can also quote an equivalent if you send us the shaft dimensions, the chain pitch and the required number of teeth. We work with trusted suppliers and can evaluate variants within the sprocket line. The more data you give us, the more accurate the proposal will be.

To order this plain sprocket 1/2" Z9 or any other size in the line, write to MR Accesorios Industriales by WhatsApp and mention the part number MR-PINON-SIMPLE-1-2-Z9. We will reply with a quote. If you are looking for an equivalent, attach a photo or a sketch with the main dimensions. We are here to advise you on selection and mounting.