
Industrial pulley 320 mm, 3 grooves, section A
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- A
- Series
- Sección A
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
EMMAR POLEA 320 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 320 3A and any equivalents.
This EMMAR pulley is a 320 mm diameter, 3-groove unit for section A V-belts. It mounts on a shaft to transmit motion and adjust speed or torque between driven and driving equipment. The pulley is manufactured in-house, so machining and balancing are controlled for smooth running. It suits transmission systems that need dependable operation and straightforward maintenance.
The designation breaks down as follows: diameter 320 mm, 3 grooves, section A. Section A refers to classic V-belts with a 13 mm top width. With three grooves, the pulley can handle more power than a single-groove version. The 320 mm diameter sets the transmission ratio when paired with another pulley. Depending on the application, the pulley is cast iron or machined steel, and it is balanced to reduce vibration. MR controls dimensions during manufacturing so the belts seat correctly.
Typical uses include belt drives on machine tools, compressors, pumps, fans, conveyors and general industrial or agricultural equipment. It also fits low and medium power transmissions where a specific speed ratio is required. Because of its diameter, it mounts on shafts up to a certain size, which is confirmed by the central bore. It is a robust choice for continuous duty.
When selecting, check the pitch diameter, number of grooves and belt section. Confirm that the shaft bore matches your shaft diameter and that the fastening method suits your setup: keyway, set screw or taper bushing. Proper alignment between pulleys prevents uneven belt wear. If you are replacing an existing pulley, compare the designation and dimensions before ordering. Belt tension should be set so the bearings are not overloaded.
If you need a different number of grooves, another diameter or a different section, we can manufacture it or locate an equivalent. Send the original part number, the full designation, or the shaft and belt dimensions. We can also help you verify the transmission ratio. MR manufactures pulleys and other transmission components and can adapt to your requirements.
To request a quote for this pulley, send the part number POLEA 320 3A by WhatsApp or email. We will reply with the quote and possible alternatives. If you need several units or a special configuration, include that in your message. We are ready to help you keep your equipment's transmission running.
Dimensions
- Size
- 320mm
- Grooves
- 3
- Section
- A
Frequently asked questions
- What does section A mean?
- Section A corresponds to classic V-belts with a 13 mm top width. It is common in medium power transmissions. This pulley has 3 grooves for that belt type, so it can transmit more force than a single-groove pulley.
- Can I order a pulley with a different diameter or number of grooves?
- Yes. Because it is manufactured in-house under the EMMAR brand, we can produce pulleys with different dimensions, grooves and sections. Send us your specifications and we will quote you. We can also evaluate equivalence with other brands if you provide the original part number.
- How do I know if this pulley fits my equipment?
- Check the shaft diameter, fastening type, belt section, number of grooves and the desired transmission ratio. If you send us that data, we will help you confirm compatibility. You can also send a photo or the part number of the original pulley.

