Industrial pulley 400 mm, 2 grooves, section B

EMMAR POLEA 400 2B is a pulleys reference, within Power transmission. Request a quote for POLEA 400 2B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The POLEA 400 2B pulley is an in-house manufactured industrial pulley, EMMAR Accesorios Industriales brand, designed to transmit power between shafts using section B V-belts. It has a 400 mm diameter and two grooves, which allows assembling two-belt drives in parallel to distribute the load. It is used in plant equipment, ventilation, pumps and general machinery where a stable transmission ratio and a replacement that fits without surprises are needed.

This item is a pulley with a 400 mm diameter, 2 grooves and section B. The designation POLEA 400 2B summarizes those three data: size, number of grooves and belt profile. Section B defines the width and depth of the groove, so the corresponding belt must be of that section. Being in-house manufactured, EMMAR brand, the part is produced with the dimensional control we apply to our entire transmission line.

Typical applications of a pulley of this type are in the drive of industrial fans, centrifugal pumps, compressors, conveyor belts and machine tools. The two grooves allow using two section B belts when the torque to be transmitted is high or when a certain redundancy is sought: if one belt fails, the other continues pulling until intervention is possible. It is also used to correct existing transmission ratios.

To mount and select this pulley properly, first verify the shaft diameter and the fastening system (keyway, taper bushing or set screw, as applicable). Then confirm that the belt is section B and that the center distance allows the required length. Align the pulleys with a straightedge or laser to avoid uneven wear of grooves and belts. Tension is adjusted according to the equipment manual; a belt that is too tight stresses bearings and a loose one slips and overheats.

If you need an equivalent or a nearby size, the most practical thing is to send us the complete part number of the pulley you are replacing, the belt section and the number of grooves. With that data we can see if there is a pulley in our line that fits or if it is better to manufacture it custom. It also helps if you send us the shaft diameter and a photo of the assembly. This way we avoid back-and-forth and quote on something concrete.

To request a quote for the POLEA 400 2B or inquire about another size in the power transmission line, write to us on WhatsApp and send us the part number. At MR Accesorios Industriales we have more than 80 years in the industrial sector and can guide you on the pulley that best suits your equipment.