Industrial pulley 450 mm, 3 grooves, section A

EMMAR POLEA 450 3A is a pulleys reference, within Power transmission. Request a quote for POLEA 450 3A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 450 3A pulley is a V-belt drive pulley, section A, with three machined grooves and a 450 mm diameter. It is used to transmit power between parallel shafts in equipment operating with moderate drive ratios and a need for good grip. As it is in-house manufactured, EMMAR brand, the machining and balancing are controlled so the belt seats evenly and the assembly rotates without vibration.

This item is a pulley with a 450 mm diameter, 3 grooves and section A. The designation POLEA 450 3A summarizes those three variables: the 450 mm outside diameter, the number of grooves (3) and the belt profile it accepts, section A. The grooves are dimensioned so the V-belt rests on the flanks and not on the bottom, which is what guarantees friction drive. It is an in-house manufactured part, EMMAR brand, designed to be mounted on shafts with a keyway and secured with a set screw or taper bushing as applicable.

It is used in belt drives on machines and equipment where speed needs to be reduced or increased between a motor and a driven shaft. It appears in industrial fans, compressors, centrifugal pumps, conveyor belts and mixers, among other applications. With three section A grooves, three belts can be mounted in parallel to distribute the load, which allows transmitting more power than with a single belt and also provides some redundancy if one breaks.

To select it, take into account the pitch diameter, the number of grooves and the section of the belt you already use. Check that the shaft has a compatible diameter and keyway, and that the pulley is aligned with the drive pulley: angular or parallel misalignment accelerates wear on the belt and the grooves. If the pulley is mounted with a taper bushing, tighten the screws in a cross pattern and to the torque specified by the bushing manufacturer. Check the balancing if the equipment runs at high revolutions.

If you need a different size, we can manufacture a pulley with another diameter, another number of grooves or another section. For that, send us the outside or pitch diameter you are looking for, the belt section, the number of grooves and the shaft diameter with its keyway. We can also quote a similar pulley if you have the part number of an old pulley or the machine data. With that data we verify feasibility and send you the quote.

To order the 450 3A pulley or ask about a variant, send the part number POLEA 450 3A by WhatsApp to MR Accesorios Industriales. If you have doubts about the equivalence with another pulley, attach a photo of the part and the shaft dimensions. That way we can quickly confirm whether it is the same one you need or whether it is better to manufacture a custom one.