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Four-groove pulley, metal disc with four V-grooves and central bore · EMMAR POLEA 80 4B
Industrial pulley 80 mm, 4 grooves, section B

EMMARIn-house manufacturingIn-house manufacturing

Industrial pulley 80 mm, 4 grooves, section B

Manufacturer Part NumberPOLEA 80 4BAlso searched as: POLEA804B · POLEA80 4B
Brand
EMMAR
Subcategory
Pulleys
Section
B
Series
Sección B
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Since 1945 · Martínez, Buenos Aires, Argentina

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Description

EMMAR POLEA 80 4B is a reference of pulleys, within Power transmission. Request a quote for POLEA 80 4B via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The 80 4B pulley is a power transmission pulley of in-house manufacturing, EMMAR Accesorios Industriales brand. It has an 80 mm diameter, 4 grooves and section B, which makes it suitable for driving several shafts at once with a single belt. It is used in machines that need to synchronize speeds or distribute load between transmission lines. If you are looking for a compact pulley with good torque capacity and multiple grooves, this size is a concrete option for your equipment.

This pulley has an 80 mm diameter, 4 grooves and section B. Section B defines the groove profile and the type of belt that corresponds to it; the 4 grooves allow four belts to be mounted in parallel on the same disc. The 80 mm diameter places it among the small pulleys of the line, designed for transmission ratios where the driving shaft rotates faster than the driven one. It is a cast or machined part depending on the batch, manufactured by EMMAR, and is supplied with the bore to be defined according to the customer's shaft.

Typical applications are machine tools, compressors, centrifugal fans, pumps and low-power conveyors. It is also used in multiple drive equipment where several belts need to work in parallel to distribute the load and reduce vibration. In process plants, this pulley appears in agitator and mixer drives. Having 4 grooves, it is common to see it in installations where a single belt cannot be allowed to take all the effort.

To install it, check that the shaft bore matches the pulley diameter and that the key fits without play. Align the pulley with the counter-pulley using a straightedge or an alignment laser: a misalignment of a few degrees accelerates wear on the belts and on the shaft bearings. Belt tension is adjusted according to the equipment manual; in 4-groove drives, all must have the same tension so they work evenly. Check balancing if the pulley will rotate at more than 3000 rpm.

If you need an equivalent pulley, send us the code POLEA 80 4B on WhatsApp together with the shaft diameter, the belt section and the number of grooves your machine requires. We can also manufacture a custom pulley if the bore or the key do not match what you have. MR Accesorios Industriales manufactures this pulley line and can advise you on the best option according to the power and rpm of your drive.

To request a quote, write to us on WhatsApp with the code POLEA 80 4B and tell us what shaft and what belt you are going to use. We will reply shortly with the alternatives if this size is not the one you need. MR Accesorios Industriales works with its own factory, so we can also adjust the bore or the key according to your drawing.

Dimensions

Size
80mm
Grooves
4
Section
B

Frequently Asked Questions

What does it mean that it is section B?
Section B defines the groove profile of the pulley and the type of belt that corresponds to it. It is not a diameter or width measurement, but the shape of the groove. For this pulley, the belt must be section B.
Can I use fewer than 4 belts on this pulley?
Yes, you can mount one, two or three belts if the drive does not require all four. But keep in mind that the torque capacity decreases and the remaining belts work more heavily loaded. Ideally, use the number for which the drive was calculated.
How do I request a pulley with a different shaft diameter?
Send the code POLEA 80 4B on WhatsApp and the shaft diameter you need. As it is in-house manufacturing, EMMAR brand, we can machine the bore and the key according to your measurement.
Request a quote for POLEA 80 4B via WhatsApp
Request a quote on WhatsApp