Industrial pulley 220 mm, 4 grooves, section A

EMMAR POLEA 220 4A is a pulleys reference, within Power transmission. Request a quote for POLEA 220 4A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The POLEA 220 4A pulley is an in-house manufactured industrial pulley, EMMAR brand, with a 220 mm diameter and 4 grooves for section A belts. It is used to transmit power between parallel shafts in equipment that needs several belts working together, such as compressors, fans, mills and conveyors. Because it is domestically produced, it allows replacing sizes and grooves according to the need of each machine, and it is machined with the tolerances required by each application.

This item is a pulley with a 220 mm diameter, 4 grooves and section A. The designation POLEA 220 4A summarizes those three variables: the outside diameter, the number of grooves and the belt profile it houses. Section A corresponds to classic narrow-profile belts, widely used in low and medium power industrial drives. Having four grooves, the pulley allows the load to be distributed among several belts, which reduces the stress on each one and improves drive continuity.

Typical applications of a 4-groove section A pulley appear in equipment where power must be transmitted with a certain redundancy: if one belt fails, the remaining ones keep pulling until the scheduled stop. It is found in screw compressors, centrifugal fans, mills, mixers, conveyor belts and machine tools. It is also used to replace original pulleys of imported equipment when the size and number of grooves match the original part.

To mount this pulley, check that the shaft diameter and the fastening system (keyway, taper bushing or set screw, as applicable) are compatible with the equipment. The alignment between drive and driven pulleys must be within the usual tolerances to avoid uneven belt wear. When selecting, take into account the power to be transmitted, the shaft rpm and the pitch diameter, not only the outside diameter. If the pulley works with four belts, it is best to replace them as a set so that all take load equally.

If you need a pulley equivalent to the POLEA 220 4A, or a nearby size in diameter or number of grooves, send us the code or the designation on the part. With that data and a photo of the assembly we can identify the variant that best suits your machine. We can also manufacture a custom pulley if the application requires it, as long as you provide the shaft dimensions, the outside diameter and the belt profile.

MR Accesorios Industriales manufactures this pulley domestically and sells it along with the rest of its power transmission line. If you want to request a quote or ask about a similar size, write to us via WhatsApp with the code POLEA 220 4A and we will reply with the technical information you need to make the purchase decision.