Industrial pulley 650 mm, 4 grooves, section B

EMMAR POLEA 650 4B 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 650 4B and any equivalents.

For drives that need a large-diameter wheel with multiple belt lines, the EMMAR 650 4B pulley is an in-house manufactured option. It measures 650 mm across, carries four grooves machined for section B V-belts, and mounts on a shaft to transmit motion in industrial equipment.

The code POLEA 650 4B tells you the essentials: a 650 mm outside diameter, four grooves, and a B-section belt profile. Section B is a common V-belt size in medium-power drives. The grooves are machined so each belt seats evenly and shares contact across the arc.

This pulley suits industrial fans, compressors, centrifugal pumps, mills, mixers, and motor-driven transmission lines. It also appears in lifting gear and continuous-process machines where speed is stepped up or down with a steady ratio. Four grooves let you run several belts together, spreading the load and keeping the drive going if one belt line is down.

When selecting and mounting, check the shaft diameter, keyway type, and fastening method. Confirm the belt section matches the groove profile and that four grooves fit the power being transmitted. Align the driving and driven pulleys to prevent uneven wear on belts and grooves. Verify balance and concentricity before startup.

For a different groove count, diameter, or section, the team can review an equivalent. Send the part number POLEA 650 4B or the original pulley data by WhatsApp or email, along with the belt section and required number of grooves. MR Industrial Accessories LLC can then guide you to the option that fits your drive.

As an EMMAR in-house manufactured item, this pulley is produced under machining control, and variants can be discussed for your application. If your equipment uses a similar pulley, message us with the part number or key dimensions. We will reply with the corresponding reference and technical data for your evaluation.