
Industrial pulley 90 mm, 4 grooves, section A
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- A
- Series
- Sección A
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Description
EMMAR POLEA 90 4A 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 90 4A and any equivalents.
The POLEA 90 4A from EMMAR is a V-belt pulley with a 90 mm outside diameter, four grooves and a section A profile. It transfers power from a motor to a driven shaft, splitting the load across multiple belts to reduce slip. This pulley is manufactured in-house and suits machine drives, plant equipment and production lines where a consistent speed ratio and straightforward replacement matter.
The part number POLEA 90 4A encodes three key details: 90 mm diameter, 4 grooves and section A. The grooves are cut for classic V-belts in that section, so each belt sits properly and wear spreads across all four. This design helps when a single belt cannot handle the torque.
You will find this pulley on machine tools, compressors, fans, centrifugal pumps, conveyors and similar plant equipment. A four-groove unit also lets you adjust an existing transmission ratio without changing the motor, simply by matching the driven pulley's groove count and section.
Before mounting, confirm that the belt section and number of grooves match the drive pulley, and check the shaft diameter and fastening method. Align the pulleys with a straightedge or laser to prevent uneven belt wear. Set tension according to the equipment manual: too much stresses bearings, too little causes slippage.
Need a different diameter or groove count? Send the part number POLEA 90 4A along with the old pulley's diameter, number of grooves, section and shaft diameter. We will evaluate the best match for your drive. We can also help if you are deciding between a section A pulley and another section for the same machine.
MR Industrial Accessories supplies bearings, housings, power transmission components, seals, bushings, mounting tools and lubricants. To request a quote for the POLEA 90 4A or ask about an equivalent, message us on WhatsApp or email with the part number and equipment details. Our team responds promptly and can suggest alternatives.
Dimensions
- Size
- 90mm
- Grooves
- 4
- Section
- A
Frequently asked questions
- What does POLEA 90 4A mean?
- It indicates a 90 mm diameter, 4 grooves and a section A belt profile. These three data points define the pulley's size and transmission capacity. If your original pulley differs, send us its specifications and we will find an equivalent.
- How can I tell if this pulley replaces the one on my machine?
- Check four things: diameter, number of grooves, belt section and shaft diameter. If all four match, the pulley is compatible. If unsure, send a photo and measurements of the old pulley via WhatsApp and we will confirm whether the POLEA 90 4A fits your equipment.
- Can I get a pulley with a different number of grooves or diameter?
- Yes. Our in-house EMMAR manufacturing covers various sizes and groove configurations. Send the part number POLEA 90 4A and the data of the pulley you need, and we will quote the closest variant or the one that best suits your drive.

