Industrial pulley 260 mm, 4 grooves, section A

EMMAR POLEA 260 4A is a pulleys reference, within Power transmission. Request a quote for POLEA 260 4A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 260 4A pulley is a V-belt drive pulley, section A, with a 260 mm diameter and 4 grooves. It is used to transmit power between parallel shafts in industrial equipment, where speed needs to be increased or reduced according to the ratio between pulleys. Because it is in-house manufactured, EMMAR brand, the machining of the groove and the balancing are controlled, two points that define how long the belt lasts and how much vibration appears in the equipment.

This item is a pulley with a 260 mm diameter, 4 grooves and section A. Section A corresponds to classic narrow-profile V-belts, and the 4 grooves allow four belts to be mounted in parallel on the same hub. The 260 mm diameter defines the transmission ratio when combined with the pulley on the other shaft. It is an in-house manufactured part, EMMAR brand, designed to replace worn pulleys or to build a new drive from scratch.

It is used in machines where load has to be moved with belts: compressors, fans, centrifugal pumps, mixers, conveyor belts and factory equipment. It also appears in the field, in implements that take motion from the power take-off. In all those cases the pulley works with the belt as a fuse: if something jams, the belt slips before the shaft or the gearbox breaks.

To choose it correctly, first verify that the belt is section A and count how many grooves the drive needs. Then check the pitch diameter, not the outside diameter, because that is where the real ratio comes from. The hub bore, the keyway and the fastening system must match the shaft. When mounting, align the pulleys with a straightedge or a laser and tension the belts according to the belt manufacturer's manual.

If you need a nearby size, a different diameter or fewer grooves, it can be ordered. Send us the full part number, the belt section, the pitch diameter you are looking for and a photo or sketch of the hub with the bore and keyway dimensions. With that, the equivalent is found or it is manufactured to measure. It also helps if you have the old pulley on hand: the hub dimensions are the ones that cause the most problems when replacing.

To request a quote for this 260 4A pulley or any other from the transmission line, write to us on WhatsApp with the part number and quantity. MR Accesorios Industriales has more than 80 years in the trade and manufactures its own pulleys, split plummer block housings and ANSI chains, so we can also solve a special pulley if the application calls for it.