
Industrial pulley 350 mm, 7 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 350 7B 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 350 7B and any equivalents.
When you need to transmit power from a motor to driven equipment, the EMMAR 350 7B pulley gives you a 350 mm diameter, 7 grooves and section B compatibility. This V-belt drive pulley is manufactured in-house, which means the groove cutting and balancing are done under controlled conditions. It is a common component in production lines, mills, conveyor belts and pumping equipment.
The 350 7B designation tells you the key dimensions: 350 mm outside diameter, 7 grooves and section B. Section B is a classic V-belt profile that handles medium to high power. With seven grooves, the load is shared across multiple belts, lowering the strain on each belt and making the drive more dependable. The 350 mm diameter, paired with the driving pulley, sets the drive ratio. Grooves are machined to tolerances that promote proper belt contact and help avoid early wear.
You will find this pulley in equipment that needs a fixed drive ratio: mills, mixers, conveyor belts, centrifugal pumps, fans and compressors. It also appears in machine tools and process equipment where motor speed must be stepped up or down. Given its size and groove count, it fits intermediate power levels within section B. It is typical in industrial plants, workshops and agro-industrial settings.
To select the right pulley, consider pitch diameter, groove count, belt section and the bushing or bore type. Confirm the shaft diameter matches the pulley bore and that the keyway is correct. During installation, align the pulleys to prevent uneven wear on belts and bearings. If you are mounting on a taper bushing, use the tightening torque specified by the bushing manufacturer.
If you need a different groove count, diameter or section, we can manufacture it. We can also review an equivalent replacement if you provide the original pulley measurements: outside diameter, number of grooves, section and bore or bushing type. With that information, we will quote the best option for your equipment. In-house manufacturing lets us adjust the machining to your requirements.
To request a quote for the 350 7B pulley or a variant, send the part number by WhatsApp. If you are unsure about an equivalent, send a photo or sketch with the main measurements. Our team will help you choose so the pulley works correctly with your drive system.
Dimensions
- Size
- 350mm
- Grooves
- 7
- Section
- B
Frequently asked questions
- What does section B mean for this pulley?
- Section B is a standardized V-belt profile that defines the belt width and height that fits the groove. This pulley has 7 grooves for section B belts, so you can run multiple belts in parallel to transmit more power.
- Can I order a pulley with a different number of grooves?
- Yes. Because it is manufactured in-house, we can produce it with the groove count you need while keeping the diameter and section. Send us your equipment details and we will quote the variant.
- How do I know if this pulley replaces the one I have?
- Check the outside diameter, number of grooves, belt section and type of bore or bushing. If they match, it is compatible. If you are unsure, send a photo or sketch with the measurements and we will help you verify.

