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Industrial pulley 320 mm, 3 grooves, section A
- Manufacturer Part Number
- POLEA 320 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 320 3A is a pulleys reference, within Power transmission. Request a quote for POLEA 320 3A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The industrial pulley with a 320 mm diameter, 3 grooves and section A is a power transmission component that mounts on shafts to transmit motion through V-belts. It is used in machines and equipment where speed and torque need to be multiplied or reduced. Because it is in-house manufactured, EMMAR brand, the machining and balancing are controlled for stable operation. It is a key part in transmission systems that demand reliability and low maintenance.
This pulley has a 320 mm diameter, 3 grooves and section A. Section A corresponds to classic V-belts with a 13 mm top width, and the 3 grooves allow more power to be transmitted than a single-groove pulley. The 320 mm diameter defines the transmission ratio when combined with another pulley. It is a cast iron or machined steel part, depending on the application, and is balanced to minimize vibrations. MR manufactures it with dimensional control to ensure the correct fit of the belts.
It is used in belt drives for machine tools, compressors, pumps, fans, conveyor belts and agricultural or industrial equipment in general. It is also common in low and medium power transmission systems where a specific speed ratio is required. Due to its diameter, it is suitable for mounting on shafts up to a certain diameter, which is confirmed according to the central bore. It is a robust solution for continuous applications.
To select the pulley, take into account the pitch diameter, the number of grooves and the belt section. Verify that the shaft bore matches the shaft diameter and the type of fastening (keyway, set screw or taper bushing). Alignment between pulleys is critical to avoid irregular belt wear. If you are replacing an existing pulley, compare the designation and dimensions before ordering. Belt tension must be adequate so as not to overload the bearings.
If you need a pulley with a different number of grooves, another diameter or a different section, we can manufacture it or find an equivalent. For that, send us the original part number, the full designation or the shaft and belt dimensions. We can also advise you if you have doubts about the transmission ratio. At MR Accesorios Industriales we manufacture pulleys and other transmission components, and we can adapt to your requirements.
To request a quote for this pulley or ask about a nearby size, send the part number POLEA 320 3A by WhatsApp to MR Accesorios Industriales. We will reply with the quote and the alternatives. If you need several units or a special configuration, indicate it in the message. We are here to help you solve your equipment's transmission.
Dimensions
- Size
- 320mm
- Grooves
- 3
- Section
- A
Frequently Asked Questions
- What does it mean that it is section A?
- Section A corresponds to classic V-belts with a 13 mm top width. It is one of the most widely used sections in medium power transmissions. This pulley has 3 grooves for that type of belt, which allows more force to be transmitted than a single-groove one.
- Can I order a pulley with another diameter or number of grooves?
- Yes. Because it is in-house manufactured, EMMAR brand, we can develop pulleys with different dimensions, grooves and sections. Send us the specifications you need and we will quote you. We can also evaluate the equivalence with other brands if you send us the original part number.
- How do I know if this pulley is compatible with my equipment?
- You need to verify the shaft diameter, the type of fastening, the belt section and number of grooves, and the desired transmission ratio. If you send us that data, we will help you confirm compatibility. You can also send us a photo or the part number of the original pulley.

