Industrial pulley 300 mm, 5 grooves, section B

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

The 300 5B pulley is a V-belt drive pulley, section B, with a 300 mm diameter and 5 grooves. It is used to drive shafts from a motor, distributing 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 to the shaft.

This item is a pulley with a 300 mm diameter, 5 grooves and section B. Section B defines the belt profile that fits into each groove; the 5 grooves allow the load to be distributed among five belts of the same profile. The 300 mm diameter is the outside diameter of the pulley. Since it is in-house manufacturing, EMMAR brand, it is machined with dimensional control and the alignment of the grooves is verified before shipping.

It is used in drives 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 drive without resorting to chains.

To mount it, verify 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 out 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 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 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 roller chains, so if the equipment needs more than one transmission part, we handle it in the same order.