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Industrial pulley 120 mm, 3 grooves, section C
- Manufacturer Part Number
- POLEA 120 3C
- Brand
- EMMARIn-house manufacturing
- Category
- Power transmission
- Subcategory
- Pulleys
- Series
- Sección C
In-house manufacturing
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
EMMAR POLEA 120 3C is a pulleys reference, within Power transmission. Request a quote for POLEA 120 3C via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The POLEA 120 3C pulley is a V-belt drive pulley, in-house manufactured, EMMAR brand, with a 120 mm diameter, 3 grooves and section C. It is used to transmit power between parallel shafts in industrial equipment, where a stable transmission ratio and good belt grip are required. Its construction allows mounting on shafts with keyway and fixing with set screws or taper bushings, as applicable.
This pulley has a 120 mm diameter, 3 grooves and section C. Section C corresponds to wide-profile V-belts, suitable for transmitting medium and high power relative to their size. The three grooves distribute the load among three belts, which provides margin to adjust the transmitted power or to continue operating if one belt fails. The 120 mm diameter defines the transmission ratio when combined with the pulley on the other shaft.
It is used in fans, centrifugal pumps, compressors, conveyor belts, mixers and machine tools. Also in refrigeration equipment and low-speed, high-torque drives. It is commonly found in food, chemical and cement plants and in workshops that assemble or repair machinery. Because it is section C, it is common in applications where section A or B belts are too small due to power or number of grooves.
To choose it correctly, take into account the pitch diameter, the number of grooves and the belt section you already use. Verify the shaft diameter and the type of fixing: keyway with set screws, taper bushing or chuck. The pulley must be aligned with the drive pulley to avoid uneven wear of belts and bearings. If you are replacing an existing pulley, note the outer diameter, total width and distance between grooves to confirm that the new one fits in the available space.
If you cannot find the exact size, we can manufacture a custom pulley or find an equivalent in the in-house manufacturing line, EMMAR brand. To do so, send us the part number POLEA 120 3C or the data of the original pulley: diameter, number of grooves, section and type of fixing. We can also quote a pulley of a different diameter or with more grooves if you need to change the transmission ratio. The idea is that you do not end up with the machine stopped.
MR Accesorios Industriales manufactures this pulley and many other sizes in the power transmission line. If you need advice to choose the correct pulley or want to ask about a nearby size, write to us via WhatsApp and we will reply with the quote. Send the part number POLEA 120 3C or a photo of the old pulley with dimensions and we will help you solve it.
Dimensions
- Size
- 120mm
- Grooves
- 3
- Section
- C
Frequently Asked Questions
- What does it mean that it is section C?
- Section C is the V-belt profile that fits into the grooves of this pulley. Section C belts are wider than A or B and are used to transmit more power per groove. If your machine uses C belts, this pulley is compatible.
- Can I order a pulley with another diameter or more grooves?
- Yes. MR manufactures custom pulleys. Send us 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 number of grooves if you want to modify the drive.
- How do I know if it fits my shaft?
- You need to know the shaft diameter and the type of fixing (keyway, taper bushing or set screws). Compare that data with the pulley you are going to replace. If you are not sure, send us a photo and the shaft dimensions and we will confirm the option.

