Industrial pulley 300 mm, 5 grooves, section B

EMMAR POLEA 300 5B is a pulleys reference, within Power transmission. Request a quote for POLEA 300 5B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 300 5B pulley is a V-belt transmission pulley, section B, with a 300 mm diameter and 5 grooves. It is used to drive shafts from a motor, distributing the power among several belts to transmit more torque without overloading a single belt. It is an in-house manufactured part, EMMAR brand, designed for equipment that runs many hours a day and needs a balanced pulley, with machined grooves and a good fit on the shaft.

This item is a pulley with a 300 mm diameter, 5 grooves and section B. Section B defines the profile of the belt that enters each groove; the 5 grooves allow distributing the load among five belts of the same profile. The 300 mm diameter is the outer dimension of the pulley. As it is in-house manufacturing, EMMAR brand, it is machined with dimensional control and the alignment of the grooves is verified before dispatch.

It is used in transmissions where a shaft must be driven with considerable torque and moderate speed: industrial fans, compressors, centrifugal pumps, conveyor belts, mixers and production machines. Also in factory equipment and in agricultural or road machines that already come with section B pulleys. When the center distance is short and several belts are needed, a 5-groove pulley like this solves the transmission without resorting to chains.

To mount it, check that the shaft diameter and the type of keyway match the pulley bore, and that the shaft is clean and free of burrs. Align the pulleys with a straightedge or a laser before tensioning the belts: a misalignment of a few degrees wears the grooves and the belts within a few weeks. Tension the belts according to the equipment manual and check the tension again after the first hours of operation. If the pulley is mounted with a taper bushing, respect the screw torque indicated by the bushing manufacturer.

If you need a nearby size, a different diameter or a pulley with a different number of grooves, send us the part number and the shaft dimensions. We can also evaluate an equivalent if you send us the original designation, the belt section and the pitch diameter. For that, it is advisable to have the drawing or the equipment data sheet on hand, so we can confirm the bore, the keyway and the balancing before manufacturing.

To request a quote for this 300 5B pulley, write to us on WhatsApp with the part number MR-POLEA-B5-300 and tell us which shaft and which belts you are going to use. At MR Accesorios Industriales we manufacture pulleys and also split plummer block housings and ANSI chains, so if the equipment needs more than one transmission part, we can handle it in the same order.