Industrial pulley 120 mm, 3 grooves, section A

EMMAR POLEA 120 3A is a pulleys reference, within Power transmission. Request a quote for POLEA 120 3A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 120 3A pulley is a V-belt drive pulley, section A, with three grooves and a 120 mm diameter. It is used to transmit motion between parallel shafts in industrial machines and equipment, where power needs to be distributed across several belts. It is in-house manufacturing, EMMAR brand, which allows the machining to be adjusted to the size and type of keyway each application requires.

This item is a pulley with a 120 mm diameter, 3 grooves and section A. The designation POLEA 120 3A summarizes those three variables: the outer diameter, the number of grooves and the belt profile it houses. The section A grooves are dimensioned for V-belts of that profile, so that the belt rests on the flanks and not on the bottom. It is an in-house manufactured part, EMMAR Accesorios Industriales brand, machined to mount on a shaft with a keyway.

Typical applications are machines with belt drives: compressors, fans, pumps, mixers, conveyor belts and plant equipment. When the power requirement exceeds what a single belt can transmit, several belts in parallel are used; hence the three grooves. It is also used to change the speed of the driven shaft relative to the motor, according to the diameter ratio between driving and driven pulley.

To select and mount this pulley, take into account the shaft diameter and keyway, the center distance, the desired transmission ratio and the power to be transmitted. Verify that the belt is section A and that the number of grooves matches the number of belts in the assembly. Alignment between pulleys is key so that belts do not come off or wear on one side. If the shaft has a different diameter, the bore can be machined to size.

If you need a pulley with a different number of grooves, another diameter or a different section, send us the data and we'll look for the nearby size within the in-house manufacturing line. We can also evaluate an equivalent if the application requires another configuration. The more complete the information — shaft diameter, keyway, belt section and number of grooves — the faster we can confirm the right part.

To request a quote for this pulley or ask about a variant, write to us on WhatsApp with the part number POLEA 120 3A or with the dimensions you need. At MR Accesorios Industriales we manufacture and supply power transmission, and we can guide you on the pulley that best fits your machine. The quote is put together according to the part and the quantity, so tell us your case and we'll reply with the technical information.