Industrial pulley 420 mm, 5 grooves, section C

EMMAR POLEA 420 5C is a pulleys reference, within Power transmission. Request a quote for POLEA 420 5C via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 420 5C pulley is a V-belt drive pulley, section C, with a 420 mm diameter and 5 grooves. It is used to drive machine shafts with defined transmission ratios, where power needs to be distributed among several belts. It is in-house manufactured, EMMAR Accesorios Industriales brand, which allows the machining and balancing to be adjusted according to the application. It is mounted on shafts with a keyway and aligned with the driving pulley so the belts work evenly.

This item is a pulley with a 420 mm diameter, 5 grooves and section C. Section C corresponds to V-belts with a wide profile, suitable for transmitting high power in few grooves. The five grooves allow the load to be distributed among five belts, so that each one works with less tension. The 420 mm diameter defines the transmission ratio together with the driving pulley. It is an in-house manufactured part, EMMAR brand, designed for continuous service in the plant.

It is found in medium and high power machines: screw compressors, industrial fans, centrifugal pumps, mills, mixers and conveyors. Also in process equipment where revolutions need to be reduced or increased without resorting to a gearbox. Having five grooves, it is common in drives where a single belt would be at its limit and a safety margin is sought. In all cases it is advisable to verify that the shaft and the keyway support the torque delivered by the pulley.

To mount it, check the shaft diameter and the keyway before fitting the pulley. It is recommended to heat it in an oil bath or with an induction heater, never hit it with a hammer. Align the pulleys with a straightedge or laser so the belts do not come off or wear on one side. Tension is adjusted according to the belt manufacturer's manual: too little tension slips, too much punishes bearings. If the pulley runs at high revolutions, it is advisable to check the balancing. Check the grooves: burrs or stepped wear shorten the life of the belt.

If you need an equivalent pulley or a neighboring size, send us the part number 420 5C by WhatsApp and we'll tell you what alternatives we have. We can also evaluate variants in number of grooves or diameter according to your shaft and the transmission ratio you are looking for. For that it is advisable that you send us the machine data: power, input and output revolutions, belt type and shaft diameter. With that we define whether a pulley of the same section is suitable or whether to move to another configuration.

MR Accesorios Industriales manufactures pulleys, split plummer block housings and ANSI chains, and sells bearings, power transmission, seals, bushings, mounting tools and lubricants. With more than 80 years in the field, the company supports plants and workshops in the selection and replacement of components. If you have questions about this 420 5C pulley, write to us on WhatsApp with the part number and we will reply with the quote.