Industrial pulley 80 mm, 4 grooves, section A

EMMAR POLEA 80 4A is a pulleys reference, within Power transmission. Request a quote for POLEA 80 4A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The pulley 80 4A is a V-belt drive pulley with section A, 80 mm diameter and 4 grooves. It is used to transmit motion between parallel shafts in industrial machines and equipment, where speed needs to be multiplied or reduced according to the ratio between pulleys. It is an in-house manufactured part, EMMAR brand, designed to be mounted on shafts with keyway and secured with a set screw or taper bushing, as applicable.

This item is a pulley with 80 mm diameter, 4 grooves and section A. The designation POLEA 80 4A summarizes those three variables: the 80 mm outer diameter, the number of grooves (4) and the belt section it accepts (A). The grooves are machined so that the V-belt seats correctly and transmits torque without slipping or wearing unevenly. It is an in-house manufactured pulley, EMMAR brand, which allows replacing sizes and grooves with some flexibility.

It is used in section A belt drives where power needs to be distributed across four grooves, for example in compressors, fans, centrifugal pumps, screens and conveyors. It also appears in machine tools and plant equipment where space is limited and it is convenient to concentrate several grooves in a small diameter. With 80 mm diameter, it is a compact-size pulley, suitable for transmission ratios where the drive shaft rotates faster than the driven shaft.

To mount it, verify that the shaft diameter matches the pulley bore and that the keyway is in good condition. Align the pulleys with a straightedge or a laser before tensioning the belt: angular or parallel misalignment accelerates wear on the belt and the grooves. Tension is adjusted according to the equipment manual or with a tension gauge; if you don't have one, aim for the belt to give only slightly when pressed with a finger on the longest span. Check the set screw or the locking bushing after the first hours of operation.

If you need a pulley with a different number of grooves, another diameter or a different section, a neighboring size within the same manufacturing line can be evaluated. For that, send us the part number POLEA 80 4A along with the size you are looking for and, if possible, a photo or sketch of the shaft and the available space. It also helps if you indicate the belt you are using and the desired transmission ratio, so we can guide you toward the closest alternative.

If this pulley is the one for your equipment, write to us on WhatsApp and send us the part number POLEA 80 4A. With that information we'll quote you. If you are unsure between two sizes, tell us which belt you use and at what speed the shaft runs, and we'll help you determine which one is best. MR Accesorios Industriales manufactures and sells power transmission, bearings and industrial maintenance accessories.