Industrial pulley 90 mm, 5 grooves, section B

EMMAR POLEA 90 5B is a pulleys reference, within Power transmission. Request a quote for POLEA 90 5B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 90 5B pulley is a power transmission pulley of in-house manufacturing, EMMAR Accesorios Industriales brand, with a 90 mm diameter and 5 grooves for section B belts. It is used to transmit motion between parallel shafts in industrial equipment, where speed needs to be multiplied or reduced and the load distributed across several grooves. Its machined construction provides the concentricity and balance needed to rotate without vibration at the usual working speeds.

This item is a pulley with a 90 mm diameter, 5 grooves and section B. The designation POLEA 90 5B summarizes those three variables: the 90 mm outside diameter, the number of grooves (5) and the belt profile it accommodates, section B. The grooves are machined with the angle and depth corresponding to that profile, so that the belt rests on the flanks and not on the bottom. The part is manufactured at MR and balanced for continuous service.

Typical applications of a 5-groove section B pulley appear in drives where a lot of power needs to be moved with a small diameter: screw compressors, centrifugal fans, process pumps, screens, conveyor belts and machine tools. It is also used in pumping equipment and in belt speed reducers, where the five grooves allow the load to be distributed and slippage reduced. It is a general-purpose pulley for plant use, not a precision part for instrumentation.

To mount it, check that the shaft is clean and free of burrs, and that the keyway matches that of the pulley. Align the pulleys with a straightedge or an alignment laser: a misalignment of a few degrees accelerates wear on the belt and the grooves. Tension is adjusted according to the equipment manual or with a tension gauge; if you don't have the data, look for the lowest tension that prevents slipping at full load. Check the balance if the pulley rotates above the usual speeds of the line.

If you need a nearby size, a different diameter or a pulley with a different number of grooves, send us the part number POLEA 90 5B or the drawing with the shaft dimensions, the keyway and the belt section. We can also manufacture a custom pulley if you provide the diameter, the grooves and the belt type. For equivalents, it is best to send the full designation and a photo of the original pulley, so we can confirm the profile and the mounting.

MR Accesorios Industriales manufactures this pulley at its plant and sells it together with the rest of the power transmission line. If you want a quote, write to us on WhatsApp with the part number POLEA 90 5B and the quantity you need. We will reply with alternatives if any dimension needs to be adjusted.