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Industrial pulley 300 mm, 3 grooves, section A
- Manufacturer Part Number
- POLEA 300 3A
- Brand
- EMMARIn-house manufacturing
- Category
- Power transmission
- Subcategory
- Pulleys
- Series
- Sección A
In-house manufacturing
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame you need.
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Description
EMMAR POLEA 300 3A is a pulleys reference, within Power transmission. Request a quote for POLEA 300 3A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The 300 3A pulley is a V-belt drive pulley, manufactured by EMMAR Accesorios Industriales. It has a 300 mm diameter, 3 grooves and section A, which makes it suitable for driving shafts with moderate transmission ratios and intermediate power. It is used in machines that need to maintain speed with little maintenance: compressors, fans, pumps, conveyor belts and factory equipment. Since it is in-house manufactured, you can inquire about variants of diameter, number of grooves or finish according to your application.
This item is a pulley with a 300 mm diameter, 3 grooves and section A. The designation POLEA 300 3A summarizes those three variables: the outside diameter, the number of grooves and the belt profile. Section A corresponds to classic V-belts with a narrow profile, suitable for transmitting power over relatively short center distances. The grooves are machined so that the belt seats uniformly and wear is even throughout the entire circumference.
Typical applications of a 3-groove section A pulley are equipment that requires redundancy or greater transmission capacity: screw compressors, centrifugal fans, centrifugal pumps, mixers and conveyors. It is also used in machine tools and in material handling equipment. Having three grooves allows the load to be distributed among several belts, which reduces the tension on each one and improves the reliability of the assembly when there are vibrations or pulsating loads.
To correctly select this pulley, take into account the shaft diameters, the type of keyway and the fastening system. Verify that the driving and driven pulleys have the same belt section and that the desired transmission ratio is compatible with the available diameters. Alignment between pulleys is key: angular or parallel misalignment accelerates wear on the belts and the grooves. It is also advisable to check the tension periodically and use belts of the same brand and batch so they work in a balanced way.
If you need a pulley with a different number of grooves, another diameter or a different section, we can manufacture it. To order an equivalent or a nearby size, send us the part number POLEA 300 3A or the data of the original pulley: diameter, number of grooves, belt section and type of bore. With that information we provide the quote. We can also advise you if you have doubts about the section or the most suitable number of grooves for your equipment.
MR Accesorios Industriales manufactures this pulley in Argentina, with more than 80 years of experience in power transmission. If you want to quote the 300 3A pulley or inquire about a variant, write to us on WhatsApp and we will reply with the technical data and the corresponding quote.
Dimensions
- Size
- 300mm
- Grooves
- 3
- Section
- A
Frequently Asked Questions
- What does it mean that it is section A?
- Section A is a classic V-belt profile. It defines the width and height of the belt that fits into the groove. It is not interchangeable with other sections such as B or C: if the belt does not match, it does not seat properly and wears out quickly.
- Can I order it with another diameter or more grooves?
- Yes, since it is in-house manufactured we can make variants. Indicate diameter, number of grooves, section and type of bore. With that data we quote the pulley to measure.
- How do I know if this pulley replaces the one I have?
- Compare the outside diameter, the number of grooves and the belt section. Also check the bore diameter and the keyway. If it matches, it is compatible. If you have doubts, send us a photo or the measurements and we will help you.

