Industrial pulley 420 mm, 2 grooves, section B

EMMAR POLEA 420 2B is a pulleys reference, within Power transmission. Request a quote for POLEA 420 2B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 420 2B pulley is a V-belt transmission pulley, section B, with two grooves and a 420 mm diameter. It is used to transmit power between parallel shafts in industrial equipment, where a defined transmission ratio and good belt grip are needed. As it is of in-house manufacturing, EMMAR brand, the machining of the bore and keyway can be adapted to the shaft. If you need a pulley to replace an existing one or for new equipment, send us the part number by WhatsApp and we'll quote it.

This pulley has a 420 mm diameter, 2 grooves and section B. Section B corresponds to V-belts with a B profile, which are the most widely used in medium-power industrial transmissions. The two grooves allow two belts to be mounted in parallel, which increases transmission capacity without changing the diameter. The body is manufactured in cast iron or steel, depending on the application, and the bore is machined with the keyway corresponding to the shaft on which it is mounted. The designation POLEA 420 2B identifies exactly this size and configuration.

It is used in machines and equipment that need to reduce or increase speed between a motor and a driven machine: compressors, centrifugal pumps, fans, conveyor belts, mixers and mills, among others. It is also common in the field, in agricultural implements and in irrigation equipment. As a two-groove pulley, it is often found in transmissions where a certain redundancy or higher torque is required, or where the load is to be distributed across two belts to reduce wear.

To correctly select a pulley of this type, the pitch diameter, the number of grooves, the belt section and the shaft diameter must be taken into account. It is also important to check the center distance and the desired transmission ratio. During mounting, make sure the pulley is aligned with the drive pulley, that the belts have the proper tension and that the keyway fits without play. If the pulley is mounted on a shaft with a bearing, it is advisable to check that there is no eccentricity.

If you need a pulley equivalent to this size, or a nearby size, the most practical thing is to send us the part number POLEA 420 2B or the equipment data: diameter, grooves, section and shaft diameter. With that we can check whether we have a similar pulley in in-house manufacturing or whether it is better to machine it to measure. We can also advise you on the right belt for that pulley and on the bushings or supports that may be needed for mounting.

To request a quote for this pulley or ask about a similar size, send the part number POLEA 420 2B by WhatsApp to MR Accesorios Industriales. We'll reply with the technical data you need for your application. If you have doubts about the section or the number of grooves, write to us and we'll help you define the right pulley for your equipment.