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Triple pulley in side view, three V-grooves and central bore for mounting · EMMAR POLEA 360 3A
Industrial pulley 360 mm, 3 grooves, section A

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Industrial pulley 360 mm, 3 grooves, section A

Manufacturer Part Number
POLEA 360 3A
Brand
EMMARIn-house manufacturing
Category
Power transmission
Subcategory
Pulleys
Series
Sección A

EMMARIn-house manufacturing

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Description

EMMAR POLEA 360 3A is a pulleys reference, within Power transmission. Request a quote for POLEA 360 3A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 360 3A pulley is a power transmission pulley manufactured by EMMAR, with a 360 mm diameter, 3 grooves and section A. It is used to drive shafts via V-belts in industrial equipment where torque must be transmitted with a defined transmission ratio. Because it is in-house manufactured, MR controls the groove machining and balancing, which helps maintain concentricity and alignment during assembly.

This pulley has a 360 mm diameter, 3 grooves and section A. Section A corresponds to classic narrow-profile V-belts, and the 3 grooves allow the load to be distributed among three belts, which provides greater transmission capacity than a single-groove pulley. The 360 mm diameter defines the transmission ratio when combined with the pulley on the driven shaft. MR manufactures it with dimensional control of the groove and concentricity verification so that the belts seat evenly.

It is used in belt drives for machines and equipment: fans, compressors, centrifugal pumps, mills, mixers, conveyor belts and test benches. Also in applications where the motor shaft speed must be reduced or increased with a large-diameter, multi-groove pulley. It is common in installations that already work with section A belts and need to replace an existing pulley while keeping the same number of grooves and diameter.

To select it, take into account the pitch diameter, the number of grooves and the belt section. Check that the keyway and the bore diameter match the shaft, and that the balancing is suitable for the rotation speed. During assembly, align the pulleys with a straightedge or laser to prevent uneven belt wear and vibration. Belt tension is adjusted according to the equipment manual; low tension causes slipping and excessive tension stresses the shaft bearings.

If you need a pulley with a different number of grooves, another diameter or a different section, you can request a nearby size or an equivalent. To do so, send the part number MR-POLEA-A3-360 or the designation POLEA 360 3A by WhatsApp, along with the shaft diameter, the keyway and the belt section you use. With that data, MR Accesorios Industriales will send you a quote.

MR Accesorios Industriales manufactures this pulley in its factory, with more than 80 years of experience in power transmission. If you have doubts about the equivalence with a pulley that is no longer available, send a photo or a drawing of the shaft and we will help you define the size. Service is via WhatsApp, with technical response.

Dimensions

Size
360mm
Grooves
3
Section
A

Frequently Asked Questions

What does it mean that it is section A?
Section A is a classic V-belt profile. The pulley has the groove machined for that profile, so section A belts must be used. It is not compatible with belts of other sections without modifying the groove.
Can I order it with a different bore diameter?
Yes. The pulley is manufactured with the bore and keyway according to the shaft. Send the shaft diameter, the keyway length and the number of grooves you need by WhatsApp, and we will quote the manufacturing.
How do I know if this pulley replaces the one I have?
Compare the pitch diameter, the number of grooves and the belt section. If they match, it is equivalent. If you have doubts, send us a photo of the old pulley with a ruler next to it and we will confirm.
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