Industrial pulley 330 mm, 3 grooves, section C

EMMAR POLEA 330 3C 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 3C and any equivalents.

The EMMAR 330 3C is a three-groove V-belt pulley with a 330 mm diameter, built for section C belts. It transfers power from a motor to a driven shaft, adjusting speed through the ratio of pulley sizes. Because MR produces it in-house, the bore, keyway and balancing can be machined to match the shaft it will sit on. This size is common on fans, pumps and medium-duty mills.

The code POLEA 330 3C tells you the essentials: 330 mm outside diameter, three grooves, and a C belt section. Each groove is cut so the belt sits at the correct angle, which keeps it from slipping or wearing on the flanks. Since it is made in-house under the EMMAR brand, the bore, keyway and balancing are finished to suit the shaft where it will be installed.

Typical applications include industrial fans and exhausters, centrifugal pumps, screw compressors, mills, mixers and conveyor belts, as well as agricultural equipment and test benches. Three section C grooves let the drive spread load across multiple belts, so if one fails the others continue to transmit power. This is a general-purpose pulley rather than a precision component, which is why it shows up in process plants, workshops and water treatment facilities.

When selecting one, check three things: the pitch diameter your drive ratio calls for, the groove count needed for the power being transmitted, and the belt section the machine already uses. Shaft diameter and keyway length also matter because the bore depends on them. During mounting, make sure the pulley slides on with the correct fit instead of being hammered, that the key sits without play, and that it aligns squarely with the drive pulley—even a few degrees of misalignment will wear belts and bearings. After mounting, verify tension and recheck it a few hours into operation.

An equivalent pulley can be requested. To do that, send the diameter, groove count, belt section, shaft diameter and keyway length. With those details, we can identify whether a pulley from the same family fits or whether manufacturing to size is the better route. Other sections and groove counts are also available within the power transmission line. The more complete the shaft and belt information, the faster the answer.

If you already have the part number POLEA 330 3C, send it by WhatsApp to MR Industrial Accessories and we will prepare your quote. If you need a similar pulley instead, write anyway: with the shaft and belt data, we can find the alternative. MR manufactures split plummer block housings, ANSI chains and pulleys, and supplies bearings, seals, bushings and lubricants to complete the drive.