Double sprocket with hub, pitch 3/4", 57 teeth

MR Piñón doble 3/4" Z57 is a sprockets and gears reference, within Power transmission. Request a quote for Piñón doble 3/4" Z57 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The double sprocket with hub, 3/4" pitch and 57 teeth, is a power transmission sprocket manufactured by EMMAR in SAE 1045 steel. It is used to transmit motion between parallel shafts via a 3/4" pitch chain, and its double-hub configuration allows it to be mounted on a shaft and couple two chains or one chain and an auxiliary mechanism. It is a part designed for continuous service in industrial equipment, where wear resistance and dimensional stability are critical.

This item is a double sprocket with hub, 3/4" pitch and 57 teeth, machined in SAE 1045 steel. The full designation is Double sprocket 3/4" Z57. The 3/4" pitch defines the compatible chain; the 57 teeth determine the transmission ratio and tangential speed. The hub is the central body that allows mounting on the shaft, and the double configuration adds a second integral toothed ring. SAE 1045 material is a medium-carbon steel, suitable for hardening and tempering depending on the application.

It is used in chain drives for agricultural machinery, conveyors, bucket elevators, mixers and process equipment. It also appears in low-speed, high-torque drive systems, where a significant reduction with a single stage is sought. The hub facilitates mounting on keyed shafts and the double toothing allows two transmission lines to be independent or movements to be synchronized from the same shaft.

To select correctly, verify that the chain pitch matches the sprocket's 3/4" pitch and that the number of teeth is compatible with the desired ratio. Check the shaft diameter and the hub fastening type before mounting. Alignment between sprocket and driven sprocket must be careful to avoid uneven wear. In service, check lubrication and chain tension; a poorly tensioned chain accelerates tooth wear.

If you need a nearby size, a different number of teeth or a single sprocket instead of a double, tell us the pitch, the number of teeth and the shaft diameter. We can also evaluate an equivalent if you send us the main dimensions and a photo of the part.

To request a quote for this double sprocket 3/4" Z57, send the code MR-PINON-DOBLE-3-4-Z57 via WhatsApp to MR Accesorios Industriales. If you have doubts about compatibility with your chain or mounting on the shaft, attach a photo of the assembly and the shaft dimensions. With that data we will confirm manufacturing alternatives.