Industrial pulley 320 mm, 7 grooves, section B

EMMAR POLEA 320 7B 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 320 7B and any equivalents.

This EMMAR pulley is a 320 mm diameter, 7-groove, section B power transmission component. It mounts on a shaft and drives V-belts, allowing multiple belts to run side by side in one body. That makes it a practical choice when you need to transmit medium power or split the drive across several belts without increasing the pulley diameter.

The part number is POLEA 320 7B. The 320 mm figure is the diameter, 7B tells you it has seven grooves for section B V-belts. Section B is a common profile for medium-power industrial drives. With seven grooves, you can install several belts in parallel, which raises the transmission capacity of the drive compared to a single-belt setup. The pulley is built for shaft mounting and must be aligned with the other pulleys in the system.

You will find this size in machine tools, compressors, centrifugal pumps, industrial fans and conveying equipment. Process plants use it on mills, mixers and slurry pumps. It also shows up in power transmission systems in the food, chemical and mining sectors. The seven-groove design is typical where redundancy or higher drive capacity is needed, or where one belt would not be enough. It often runs opposite a smaller driven pulley to step speed up or down.

When selecting this pulley, check the pitch diameter, the number of grooves and the belt section. Confirm that the shaft diameter and keyway match, and that the pulley lines up with the driven pulley to avoid premature belt and bearing wear. Set belt tension according to the drive manufacturer's recommendation. Because EMMAR manufactures this pulley in-house, we can evaluate bore modifications or the addition of a taper bushing if your shaft requires it.

To request a quote, send the part number POLEA 320 7B by WhatsApp or email. If you do not have the part number, a photo of the original pulley plus the outside diameter, number of grooves and belt section is enough for our team to identify a replacement or equivalent. In-house manufacturing also helps with adaptations and special series. Tell us what you need and we will reply promptly with the technical and commercial information.