Industrial pulley 330 mm, 4 grooves, section B

EMMAR POLEA 330 4B is a pulleys reference, within Power transmission. Request a quote for POLEA 330 4B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 330 4B pulley is a V-belt drive pulley, section B, with four grooves and a 330 mm diameter. It is used to transmit power between parallel shafts in machines that run with fixed transmission ratios and moderate to high loads. Because it is in-house manufactured, EMMAR brand, the bore, keyway and balancing can be machined to suit the equipment's needs. Quotes are provided by WhatsApp stating the part number.

This item is a pulley with a 330 mm diameter, 4 grooves and section B. The designation POLEA 330 4B summarizes those three data points: the pulley's outer diameter, the number of grooves and the belt section it accommodates. Section B corresponds to classic-profile V-belts, different from sections A, C or narrow SPB belts. The four grooves allow four belts to be mounted in parallel on the same disc, which multiplies transmission capacity without increasing the diameter.

Typical applications are fixed-drive equipment where speed needs to be reduced or increased between a motor and a machine: fans, compressors, centrifugal pumps, conveyor belts, mixers and mills. It is also used in agricultural and industrial machines that already come set up for section B belts. With four grooves, it is common in drives where a single belt would be at its limit and the load is better distributed among several.

To select the pulley, you must verify the pitch diameter, the number of grooves and the belt section, as well as the shaft diameter and the type of keyway. The 330 mm diameter and the 4 grooves are this pulley's data; the bore, keyway and balancing are defined according to the shaft it is mounted on. It is advisable to check the alignment between pulleys and the belt tension to avoid uneven wear and vibration.

If you need a pulley with a different number of grooves, another diameter or a different section, you can request a nearby size or an equivalent. To do so, send the part number POLEA 330 4B or the equipment data: pulley diameter, belt section, grooves, shaft diameter and keyway. With that data, the closest option within the in-house manufacturing line is found.

MR Accesorios Industriales manufactures this pulley and other power transmission parts. If you already have the part number, send it by WhatsApp and it will be quoted. If you don't have it, send a photo of the old pulley or the measurements taken with a caliper and the part will be identified. Bearing housings, bearings, ANSI chains and lubricants within the same line can also be inquired about.