Industrial pulley 280 mm, 1 groove, section B

EMMAR POLEA 280 1B is a pulleys reference, within Power transmission. Request a quote for POLEA 280 1B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 280 1B pulley is a power transmission pulley manufactured in-house by EMMAR Accesorios Industriales, with a 280 mm diameter and one groove for a section B belt. It is used to transmit motion from a motor or gear reducer to a driven shaft, in machines that work with simple transmission ratios and V-belts. Its metal construction and machined groove allow the belt to seat correctly and wear evenly in continuous service.

This item is a pulley with a 280 mm diameter, a single groove and section B, per the designation POLEA 280 1B. Section B corresponds to a V-belt profile widely used in medium-power industrial drives. With a single groove, the pulley handles one belt and is used in drives where parallel strands do not need to be added. MR manufactures it at its plant, with dimensional control over the diameter and the groove profile.

Typical applications for a pulley of this type include fans, compressors, centrifugal pumps, light conveyor belts, mixers and factory equipment. It is also used to replace worn pulleys or to change the transmission ratio of an existing machine by changing the diameter of the drive or driven pulley. In all cases, it is advisable to verify that the belt is section B and that the diameter is compatible with the permissible linear speed of the equipment.

To mount and select a single-groove section B pulley, take into account the pitch diameter, the shaft diameter and the type of fastening (keyway, set screw or taper bushing, as applicable). The groove must be aligned with that of the opposite pulley to avoid uneven belt wear and vibration. Also check the belt tension and the condition of the shaft bearings: a new pulley does not correct a previous misalignment. If the equipment works with variable loads, it is advisable to consider a larger diameter or more grooves.

If you need a pulley with another size, another number of grooves or a different section, you can request an equivalent or a nearby size within the same manufacturing line. To do so, send us the current part number, the diameter, the number of grooves and the belt section, and we will confirm the available alternative. We can also manufacture to order if the shaft or keyway do not match the standard, as long as you provide the drawing or the relevant dimensions.

To request a quote for this 280 1B pulley or ask about a variant, write to us on WhatsApp with the part number MR-POLEA-B1-280. If you have doubts about the equivalence with an existing pulley, send a photo of the part and the shaft size. At MR Accesorios Industriales we manufacture pulleys, split plummer block housings and ANSI chains, and we distribute bearings, seals, bushings and lubricants for industrial maintenance.