Industrial pulley 420 mm, 1 groove, section A

EMMAR POLEA 420 1A is a pulleys reference, within Power transmission. Request a quote for POLEA 420 1A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 420 1A pulley is a power transmission pulley of in-house manufacturing, EMMAR brand, with 420 mm diameter, one groove and A-section. It is used to transmit motion from a motor to a machine through V-belts. Its single-groove design makes it suitable for simple drives where a direct transmission ratio and good belt grip are sought. It is a key part in industrial equipment that needs to operate continuously and reliably.

This pulley has a 420 mm diameter, one groove and A-section. The A-section corresponds to classic narrow-profile V-belts, widely used in light and medium drives. The 420 mm diameter allows obtaining a high tangential speed with few shaft RPM, which makes it useful for fans, compressors and other machines that rotate at moderate speeds. The single groove simplifies mounting and alignment, and is ideal when redundancy in the drive is not needed.

Typical applications include industrial fans, centrifugal pumps, screw compressors, light conveyor belts and machine tools. It is also used in process equipment where a speed reduction or multiplication with a single belt is required. Due to its size, it is usually mounted on motor shafts or on machine shafts that already have a smaller drive pulley. It is common to see it in installations where space is limited and drive simplicity is prioritized.

To mount it, verify that the shaft has the proper diameter and keyway, and that the pulley is well aligned with the drive pulley to avoid premature belt wear. Belt tension must be correct: if it is too loose, it slips; if it is too tight, it overloads the bearings. Choose the A-section belt compatible with the groove and verify that the pulley outer diameter is suitable for the speed you need. If you have doubts, consult us with your machine data.

If you need an equivalent pulley or a nearby size, send us the original pulley part number, the belt section, the number of grooves and the diameter you are looking for. We can also manufacture a custom pulley if you indicate the dimensions and shaft type. At MR Accesorios Industriales we manufacture pulleys and split plummer block housings, and we sell bearings, transmission and seals. Send us the part number via WhatsApp and we'll quote you shortly.