Industrial pulley 650 mm, 5 grooves, section B

EMMAR POLEA 650 5B is a pulleys reference, within Power transmission. Request a quote for POLEA 650 5B via WhatsApp or email with the quantity you need; we respond promptly with lead time 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 drive systems where a robust and balanced pulley is required. Because it is in-house manufactured, machining and finishing variants can be requested 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 drive ratio when combined with a driving or driven pulley. It is a cast iron or machined steel part, with ground grooves for proper belt seating. It is manufactured at MR with dimensional control on outside diameter, grooves and center bore.

Typical applications of a 650 mm, 5-groove section B pulley are equipment that moves significant loads at moderate speeds: screw compressors, centrifugal fans, mills, mixers, conveyor belts and production machines. It is also used in test benches and in drives where speed needs 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 bore type (cylindrical or tapered), the keyway and the fastening system. Check that the driving 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 vibration. Static and dynamic balancing should also be checked, especially in high-speed applications. If the shaft does not match, the bore can be machined to size.

If you need an equivalent pulley or a nearby size, the most practical option is to send us the part number POLEA 650 5B by WhatsApp along with the shaft data: diameter, length, keyway and fastening type. It also helps if you indicate the belt section and the number of grooves your drive requires. With that data, at MR Accesorios Industriales we advise you on the pulley that best fits, whether from our manufacturing or within the lines we carry. 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 will reply with the available technical information and manufacturing alternatives. MR Accesorios Industriales manufactures pulleys and other drive components, and also carries other brands. Tell us what you need and we will help you solve it.