Industrial pulley 120 mm, 6 grooves, section B

EMMAR POLEA 120 6B is a pulleys reference, within Power transmission. Request a quote for POLEA 120 6B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 120 6B pulley is a power transmission pulley of in-house manufacturing, EMMAR Accesorios Industriales brand, designed to build V-belt drives in section B. It has a 120 mm diameter and 6 grooves, so it allows running several belt strands in parallel on the same shaft. It is used in equipment where the load needs to be distributed among grooves and a stable transmission ratio maintained, such as fans, compressors, pumps and conveyors.

This item is a pulley with a 120 mm diameter, 6 grooves and section B. The designation POLEA 120 6B summarizes those three data points: size, number of grooves and belt profile. Section B corresponds to a V-belt profile widely used in industrial transmission, and the 6 grooves allow mounting up to six belts of the same profile on the same pulley. The part is manufactured at MR, so the groove geometry and balancing are subject to our own machining control.

Typical applications of a 6-groove section B pulley appear in drives where a fair amount of power needs to be transmitted with a small diameter: centrifugal fans, screw compressors, centrifugal pumps, mixers and belt conveyors. It is also used in machine tools and process equipment already set up for section B belts. Because it has several grooves, if one belt fails the equipment can keep running on the remaining ones until the scheduled stop, something that is valued on the plant floor.

To mount and select this pulley, first check that the shaft and keyway match the pulley bore, and that the belt section is B. Check the alignment between pulleys with a straightedge or laser: a misalignment of a few degrees shortens belt life and punishes the equipment's bearings. Tension is adjusted according to the belt manufacturer's manual, not by eye. If you are going to replace an existing pulley, take the outside diameter, the number of grooves and the bore diameter before ordering it.

If you need an equivalent or a nearby size, the most practical thing is to send us the complete part number of the pulley you are using, a photo of the part and, if possible, the shaft diameter and the number of grooves. With that data we can see whether there is a pulley in our line that replaces the current one or whether it is better to manufacture it to measure. It also helps if you tell us which belt the equipment uses, because the profile conditions the choice.

To request a quote for this 120 6B pulley or ask about another size, send the part number MR-POLEA-B6-120 by WhatsApp to MR Accesorios Industriales. If you have doubts about the replacement, attach the photos and the shaft data, and we will reply with the option that best fits your equipment.