
Industrial pulley 150 mm, 3 grooves, section A
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- A
- Series
- Sección A
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Description
EMMAR POLEA 150 3A belongs to pulleys, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for POLEA 150 3A and any equivalents.
The EMMAR 150 3A is a V-belt pulley with a 150 mm diameter and three grooves for section A belts. It is manufactured in-house and is designed for continuous power transmission between shafts, speed ratio adjustment, and tolerance of minor misalignment in industrial drives.
The three grooves allow you to run up to three A-section belts in parallel on the same pulley body. This distributes the load across multiple belts, increasing transmission capacity and providing some redundancy if one belt fails. The 150 mm diameter is a key factor when calculating the drive ratio with the mating pulley. The groove profile is specific to section A belts; other sections such as B or C will not fit correctly.
Typical applications include compressors, fans, centrifugal pumps, conveyors, mixers, and other factory equipment that runs continuously. In low- and medium-power drives where a fixed ratio and straightforward maintenance are priorities, this pulley is a common choice. The cast construction is intended to withstand wear and repeated stress in demanding environments.
When selecting this pulley, confirm the pitch diameter, number of grooves, and belt section. Check that the bore and keyway match your shaft; if not, machining or adaptation may be required. Proper alignment between pulleys is critical—angular or parallel misalignment will accelerate belt and groove wear. Belt tension should follow the belt manufacturer's recommendation, neither too loose nor too tight.
If you need a different number of grooves, another diameter, or a different section, we can manufacture it or find an equivalent. To do so, provide the original pulley part number, belt section, pitch diameter, and number of grooves. With that information, we can offer a suitable alternative from our line. We can also evaluate machining the bore and keyway to fit your shaft.
MR Industrial Accessories LLC supplies this EMMAR pulley and other power transmission components. If you have the part number POLEA 150 3A, send it via WhatsApp or email for a quote. If you are unsure of the size, contact us with your machine details and we will help you identify the right pulley.
Dimensions
- Size
- 150mm
- Grooves
- 3
- Section
- A
Frequently asked questions
- What does section A mean?
- Section A refers to the V-belt profile that fits into the pulley groove, defining its width and depth. It is not interchangeable with other sections like B or C; using the wrong belt will prevent proper operation.
- Can I use fewer than three belts on this pulley?
- Yes, you can mount one, two, or three belts. The number depends on the power to be transmitted. Using fewer grooves reduces capacity. Ideally, all belts should operate with equal tension.
- How do I order a pulley with a different diameter or more grooves?
- Send us a message on WhatsApp with the required diameter, number of grooves, and belt section. Include the original pulley part number if available. We will then quote a manufacturing or an alternative.

