Industrial pulley 280 mm, 7 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 280 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 280 7B and any equivalents.
The POLEA 280 7B is a 280 mm pulley with seven grooves cut for section B V-belts. It bolts onto a shaft to transmit power through multiple belts at once, which suits drives that need to spread load across several belts or keep running if one belt is replaced. The grooves are machined in-house, so the profile and balance stay consistent from one unit to the next.
Reading the code is straightforward: POLEA 280 7B tells you the diameter is 280 mm, the groove count is seven, and the belt cross-section is B. Whether that 280 mm refers to the pitch diameter or the outside diameter depends on the specific design, and the product page confirms which one applies to this item. Seven grooves mean seven section B belts can run side by side.
You will find this pulley on mills, mixers, compressors, industrial fans, conveyors and machine tools. Pumping equipment and other transmission systems also use it wherever a defined speed ratio is needed. Drives with seven grooves are common when torque demand is high or when the load is shared across several belts to reduce wear on any single belt.
During installation, check that the shaft diameter and tolerance match the bore and that the keyway lines up. Align the driving and driven pulleys so the belts do not wear unevenly or set up vibration. Tension the belts to the belt manufacturer's recommendation. When choosing a pulley, work from the power to be transmitted, the rotation speed and the pitch diameter to get the transmission ratio right.
If your machine calls for a different groove count, diameter or belt section, we can manufacture it or locate it. Send the part number POLEA 280 7B or the original pulley data — diameter, grooves, section, and bushing or taper type — and we will quote the closest match. Drawings or samples are welcome for special pulleys.
To request a quote or ask about a variant, message us on WhatsApp with the part number POLEA 280 7B. Our team helps you confirm the right part for your application.
Dimensions
- Size
- 280mm
- Grooves
- 7
- Section
- B
Frequently asked questions
- What does POLEA 280 7B mean?
- It identifies a pulley with a 280 mm diameter and seven grooves for section B belts. The 280 mm may be pitch or outside diameter depending on the design; the product page confirms which. The groove count tells you how many belts it takes.
- Is this pulley made in-house?
- Yes, it is manufactured in-house under the EMMAR brand. That gives control over groove machining and balancing. Other sizes or groove counts can be manufactured to order.
- How do I request an equivalent pulley or a different size?
- Send the part number POLEA 280 7B via WhatsApp, or provide the original pulley's diameter, number of grooves, belt section and mounting type. With that information we will quote the equivalent option.