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Industrial pulley 380 mm, 7 grooves, section B
- Manufacturer Part Number
- POLEA 380 7B
- Brand
- EMMARIn-house manufacturing
- Category
- Power transmission
- Subcategory
- Pulleys
- Series
- Sección B
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 380 7B is a pulleys reference, within Power transmission. Request a quote for POLEA 380 7B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The 380 mm industrial pulley with 7 grooves section B is a power transmission component that mounts on shafts to drive V-belts. It is used in machines that need to transmit torque between a motor and a driven equipment, such as mills, mixers, compressors or conveyor belts. Its diameter and number of grooves allow the load to be distributed among several belts, which extends the service life of the assembly and reduces the risk of slippage.
This item is a pulley with a 380 mm diameter, 7 grooves and section B. The designation POLEA 380 7B summarizes those three variables: the outside diameter, the number of grooves and the belt profile it accepts. Section B corresponds to classical V-belts, widely used in industrial drives. The pulley is manufactured at MR with dimensional control so that the grooves align correctly with the belt and the rest of the system.
Typical applications of a 7-groove section B pulley appear in equipment that requires transmitting moderate to high power with several belts in parallel. It is found in industrial fans, centrifugal pumps, screw compressors, vibrating screens, bucket elevators and machine tools. It is also used to replace worn pulleys or to modify the transmission ratio when the speed of the driven equipment needs to be adjusted without changing the motor.
To mount this pulley, verify that the shaft has a compatible diameter and keyway, and that the pulley is aligned with the drive pulley. The number of grooves must match the number of belts you are going to use: if you install fewer belts than grooves, the transmission capacity drops. Also check the belt tension and the condition of the grooves, because uneven wear generates vibration and accelerates breakage. If you do not have the technical data sheet, contact us and we will provide the mounting data.
If you need an equivalent pulley or a nearby size, send us the part number POLEA 380 7B or the diameter and number of grooves you are looking for. We can also evaluate variants in other sections or with a different number of grooves. At MR Accesorios Industriales we manufacture pulleys and other transmission components, so we can guide you on the option that best suits your equipment. Write to us on WhatsApp and we will quote you.
MR Accesorios Industriales has more than 80 years in the industry and manufactures this pulley in the country. If your machine is out of service, send the part number via WhatsApp and we will help you identify the replacement. We work with workshops, plants and industrial maintenance, and we can advise you so that the new pulley fulfills the function of the original one.
Dimensions
- Size
- 380mm
- Grooves
- 7
- Section
- B
Frequently Asked Questions
- What does POLEA 380 7B mean?
- The part number indicates a pulley with a 380 mm diameter, 7 grooves and section B. That section corresponds to classical V-belts. If your original pulley has a different number of grooves or a different diameter, send us that data and we will look for the equivalent.
- What type of belt does it use?
- For section B V-belts. It is important that the belt is of that section so that it seats properly in the groove and does not slip or wear prematurely. If you are not sure about the section, contact us with the belt part number.
- How do I request a pulley with another size?
- Send us the diameter, the number of grooves and the section you need via WhatsApp. You can also send us a photo or the part number of the old pulley. With that data we will quote the closest option or a custom manufacturing.

