
Industrial pulley 120 mm, 3 grooves, section C
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- C
- Series
- Sección C
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Description
EMMAR POLEA 120 3C 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 120 3C and any equivalents.
The POLEA 120 3C is a V-belt pulley from the EMMAR line, produced in-house. It measures 120 mm in diameter and has three grooves for section C belts. This component transfers power between parallel shafts in industrial machinery, maintaining a consistent speed ratio and reliable belt traction. It can be mounted on shafts with a keyway and secured with set screws or taper bushings, depending on the setup.
The 120 mm diameter, three-groove design, and section C profile define this pulley. Section C belts are wider than A or B profiles, making them suitable for medium to high power relative to their size. Distributing the load across three grooves gives flexibility to adjust power capacity or keep running if one belt breaks. The 120 mm diameter sets the transmission ratio when paired with the pulley on the opposing shaft.
Typical applications include fans, centrifugal pumps, compressors, conveyor belts, mixers, and machine tools. You will also find it in refrigeration equipment and low-speed, high-torque drives. It is common in food, chemical, and cement plants, as well as in workshops that assemble or repair machinery. Because it uses section C, it often appears where A or B belts are too small for the power or number of grooves required.
When selecting this pulley, consider the pitch diameter, groove count, and the belt section you already use. Check the shaft diameter and fixing method: keyway with set screws, taper bushing, or chuck. Proper alignment with the drive pulley is essential to prevent uneven wear on belts and bearings. If you are replacing an existing pulley, record the outer diameter, overall width, and groove spacing to ensure the new one fits the available space.
If the exact size is not available, we can manufacture a custom pulley or suggest an equivalent from the in-house EMMAR line. Send the part number POLEA 120 3C or the original pulley data: diameter, number of grooves, section, and fixing type. We can also quote a different diameter or additional grooves if you need to change the transmission ratio. Our goal is to keep your machine running.
MR Industrial Accessories manufactures this pulley and many other sizes in the power transmission line. For help choosing the right pulley, contact us via WhatsApp and we will reply with a quote. Send the part number POLEA 120 3C or a photo of the old pulley with dimensions, and we will assist you.
Dimensions
- Size
- 120mm
- Grooves
- 3
- Section
- C
Frequently asked questions
- What does section C mean for this pulley?
- Section C refers to the V-belt profile that fits the grooves. Section C belts are wider than A or B and transmit more power per groove. If your machine uses C belts, this pulley is compatible.
- Can I order a pulley with a different diameter or more grooves?
- Yes. MR manufactures custom pulleys. Provide the diameter, number of grooves, and section you need, and we will quote you. We can also make a pulley with the same diameter but a different groove count if you want to modify the drive.
- How do I know if it fits my shaft?
- You need the shaft diameter and fixing type (keyway, taper bushing, or set screws). Compare that with the pulley you are replacing. If unsure, send us a photo and the shaft dimensions, and we will confirm the option.

