Industrial pulley 650 mm, 5 grooves, section B

EMMAR POLEA 650 5B is a reference of pulleys, within Power transmission. Request a quote for POLEA 650 5B via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The 650 5B pulley is a V-belt drive pulley, manufactured by EMMAR Accesorios Industriales. It has a 650 mm diameter, 5 grooves and section B, which makes it suitable for transmitting power in medium and high-demand equipment. It is used in industrial machines, compressors, fans and transmission systems where a robust and balanced pulley is needed. Since it is in-house manufacturing, you can ask about machining and finishing variants according to the application.

This pulley is identified as POLEA 650 5B: 650 mm diameter, 5 grooves and section B. Section B corresponds to classic-profile V-belts, and the 5 grooves allow several belts to be mounted in parallel to distribute the load. The 650 mm diameter defines the transmission ratio when combined with a drive or driven pulley. It is a cast iron or machined steel part, with ground grooves for good belt seating. It is manufactured at MR with dimensional control on the outer diameter, grooves and central bore.

The typical applications of a 650 mm, 5-groove, section B pulley are equipment that moves important loads at moderate speeds: screw compressors, centrifugal fans, mills, mixers, conveyor belts and production machines. It is also used in test benches and in transmissions where revolutions need to be reduced or increased with V-belts. Due to its size, it is usually mounted on shafts of considerable diameter and with a keyway to transmit torque without slipping.

To select and mount this pulley, take into account the shaft diameter, the type of bore (cylindrical or tapered), the keyway and the fastening system. Check that the drive and driven pulleys use the same belt section and that the number of grooves is compatible. Alignment between pulleys is key to avoid uneven belt wear and vibrations. It is also advisable to check static and dynamic balancing, especially in applications with high speeds. If the shaft does not match, the bore can be machined to measure.

If you need an equivalent pulley, the most practical thing is to send us the part number POLEA 650 5B by WhatsApp along with the shaft data: diameter, length, keyway and type of fastening. It also helps if you indicate the belt section and the number of grooves required by your transmission. With that data, at MR Accesorios Industriales we advise you on the pulley that best adapts, whether from our manufacturing or within the lines we distribute. If space allows, a nearby diameter can be evaluated.

To request a quote for this pulley or ask about a variant, write to us on WhatsApp and send us the part number POLEA 650 5B. We reply with the available technical information and manufacturing alternatives. MR Accesorios Industriales manufactures pulleys and other transmission components, and also distributes other brands. Tell us what you need and we help you solve it.