Industrial pulley 280 mm, 4 grooves, section B

EMMAR POLEA 280 4B is a pulleys reference, within Power transmission. Request a quote for POLEA 280 4B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 280 4B pulley is a V-belt drive pulley, section B, with 280 mm diameter and 4 grooves. It is used to drive shafts from a motor, reducing or increasing revolutions according to the combined diameters. It is in-house manufacturing, EMMAR Accesorios Industriales brand, which allows replacing sizes and grooves with the same geometry. If you need to replace a worn pulley or build a new drive, this model covers medium powers with four belts in parallel.

This item is a pulley of 280 mm diameter, with 4 grooves and section B. The designation POLEA 280 4B summarizes those three data: outside diameter of 280 mm, four grooves and profile B, which corresponds to V-belts of section B. The pulley is mounted on the equipment shaft and transmits motion from the motor by means of the belts. Having four grooves, it distributes the load among four belts, which allows handling more power than a single-groove pulley of the same diameter.

Typical applications are power transmission equipment in industrial plants: fans, centrifugal pumps, compressors, conveyor belts, mixers and machine tools. It is also used in the field, in agricultural implements and in workshops that assemble or repair drives. Being a section B pulley, it is common in installations where a balance between load capacity and moderate peripheral speed is sought. If the equipment works many hours per day, it is advisable to check alignment and belt tension.

To select a pulley of this type, take into account the pitch diameter, the number of grooves and the belt section. Section B accepts profile B belts, and the number of grooves defines how many belts you can mount in parallel. Verify that the pulley diameter is compatible with the shaft speed and with the diameter of the driving pulley, so as not to force the drive. During mounting, make sure the keyway and the fit to the shaft are correct, and that the pulleys are aligned to avoid uneven wear.

If you need a pulley with a different number of grooves, another diameter or a different section, an equivalent or a nearby size can be requested. For that, send the part number POLEA 280 4B or the data of the original pulley: diameter, grooves, section and shaft type. With those data, the closest option within the in-house manufacturing line is sought. Custom pulleys can also be quoted if the equipment requires it, as long as the mounting dimensions are available.

To request a quote for this pulley or ask about a variant, write to us on WhatsApp and send us the part number POLEA 280 4B. At MR Accesorios Industriales we manufacture pulleys and other transmission components, and we can advise you so that the pulley you choose works with the belts and shaft you already have. If you are unsure between two sizes, send both and we will help you define which is better according to the equipment and use.