Industrial pulley 330 mm, 5 grooves, section B

EMMAR POLEA 330 5B belongs to pulleys, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for POLEA 330 5B and any equivalents.

The 330 5B is a V-belt drive pulley with a 330 mm diameter and 5 grooves for section B belts. It is manufactured in-house under the EMMAR brand and is used to transmit torque from a motor to a driven shaft through multiple belts running in parallel. This pulley is suited for replacements and new installations where a consistent drive ratio and proper belt support are needed.

The part number 330 5B identifies the key attributes: 330 mm diameter, 5 grooves, and section B belt profile. The grooves are machined to accept B-section V-belts, and the five grooves allow the load to be distributed across several belts. The pulley mounts on the shaft of either the driven equipment or the motor, depending on the drive arrangement.

Common applications include fans, exhausters, compressors, centrifugal pumps, screens, and belt conveyors. In these systems, the pulley works with an electric motor and a smaller drive pulley; the ratio of their diameters determines the driven shaft speed. It is also used when an existing drive needs correction or a worn pulley must be replaced.

When selecting this pulley, verify the shaft diameter, keyway type, number of grooves, and the belt section already in use. Ensure the drive and driven pulleys share the same section and that the center distance allows proper tensioning. During installation, align the pulleys with a straightedge or laser, check groove parallelism, and tension the belts according to the belt manufacturer's instructions.

If you need a different diameter, groove count, or a pulley for a larger shaft, provide the equipment details: pulley diameter, grooves, section, shaft diameter, and keyway type. We can locate an equivalent from our in-house manufacturing line or offer a custom pulley. We can also check whether the drive can accept a different pulley diameter without altering the rest of the assembly.

To request a quote for the 330 5B pulley, send the part number and quantity via WhatsApp or email. If you are unsure about the section or number of grooves, send a photo of the old pulley or the assembly and we will review it. MR Industrial Accessories LLC manufactures pulleys, split plummer block housings, and ANSI chains, and distributes bearings, seals, and power transmission products for industrial plants.