
Industrial pulley 280 mm, 8 grooves, section C
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- C
- Series
- Sección C
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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Description
EMMAR POLEA 280 8C is a reference of pulleys, within Power transmission. Request a quote for POLEA 280 8C via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The 280 8C pulley is a V-belt drive pulley, section C, with a 280 mm diameter and 8 grooves. It is used to drive shafts from a motor, reducing or increasing revolutions depending on the combined diameters. It is in-house manufacturing, EMMAR Accesorios Industriales brand, so we produce it with the finish and balancing that each application requires. If you need to replace a worn pulley or build a new drive, this model covers high power with several belts in parallel.
This item is a pulley with a 280 mm diameter, 8 grooves and section C. The grooves are the seats where the V-belts rest; being eight, the pulley allows distributing the load among eight belts, something common when transmitting significant power or when a certain redundancy is sought. Section C corresponds to a medium-large belt profile, and the 280 mm diameter defines the transmission ratio you will obtain depending on the pulley you face it with. It is an in-house manufactured part, EMMAR brand, not a resale item.
It is used in drives of machines and equipment where the drive is done by belts: compressors, fans, pumps, mills, conveyor belts, mixers and process equipment in general. It also appears in the field, in implements and agricultural machines that work with section C pulleys. Having 8 grooves, it is common to see it on the fast shaft of a machine that drives a slow shaft with a lot of torque, or vice versa, depending on how the pulley pair is set up.
To mount it, verify that the bore and the key match the shaft, and that the pulley is aligned with the one it faces: a misalignment, even a small one, punishes the belts and the bearings. The number of belts to place depends on the power to be transmitted; you don't have to use all 8 grooves if the calculation gives fewer, but it is advisable that all belts work with the same tension. Check the condition of the grooves before mounting: burrs or wear change the belt's support.
If you need a different diameter size, another number of grooves or a pulley for another type of belt, it can be ordered. The same if you are looking for an equivalent to a pulley you already have mounted: send us the outside diameter, the number of grooves, the section and the bore diameter, and we compare it with what we manufacture. We can also evaluate the material and the treatment according to the working environment.
To request a quote for this 280 8C pulley or a variant, send the part number via WhatsApp to MR Accesorios Industriales. If you have doubts about the equivalence with the pulley you are replacing, send us a photo or the shaft data and we'll help you define it. We can advise you both on the pulley and on the belts and bearings of the equipment.
Dimensions
- Size
- 280mm
- Grooves
- 8
- Section
- C
Frequently Asked Questions
- What does it mean that it is 8 grooves and section C?
- Eight grooves are the seats where the belts rest, and section C is the corresponding V-belt profile. That defines how many belts you can mount and what type of belt goes in each groove. If your drive uses another section, ask us.
- Can I order it with another diameter or a different number of grooves?
- Yes. Because it is in-house manufacturing, EMMAR brand, variants of diameter, number of grooves and bore can be evaluated. Send the data of the pulley you need and we'll tell you if it falls within what we manufacture or the configuration that corresponds.
- How do I know if it replaces the pulley I have mounted?
- Compare outside diameter, number of grooves, belt section and bore diameter with keyway. With that data we confirm the equivalence. If you can, send a photo of the old pulley and the shaft via WhatsApp.

