
Industrial pulley 290 mm, 3 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 290 3B 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 290 3B and any equivalents.
The EMMAR 290 3B is an industrial pulley built in-house with a 290 mm diameter and three grooves sized for B-section belts. It transfers power between shafts on drives that run several belts side by side, so the load is shared across the grooves and the machine can keep working if one belt gives out. Compressors, pumps, fans and production equipment are common homes for this size.
Reading the designation is straightforward: 290 is the diameter in millimeters, 3 is the groove count and B is the belt profile the grooves are cut for. B section is one of the classic industrial belt profiles, so replacements are easy to source. Since the pulley is machined and balanced in our own shop, it runs without the vibration that comes from outsourced work.
Three-groove B-section drives show up where torque has to be carried with some redundancy: screw compressors, centrifugal pumps, induced draft fans, mixers and production lines, plus agricultural and material handling equipment. The pulley mounts on a shaft and connects by belts to a second pulley, forming a multiple-belt drive.
Before ordering, check the shaft diameter, the keyway type and how the pulley will be secured, whether by set screw, cone or bushing. The driving and driven pulleys must share the same belt section, and the groove counts need to match. Keeping the two pulleys aligned prevents uneven belt wear, and on drives with changing loads it pays to check belt tension and groove condition on a regular schedule.
Need a different size or a cross-reference? Send the part number 290 3B, or simply measure what you have now: diameter, number of grooves and section. We can also build a custom pulley from a drawing or a sample, adjusting the machining to suit the application. Quotes go out by WhatsApp or email, and our team can suggest equivalents and help you pick the right one.
Dimensions
- Size
- 290mm
- Grooves
- 3
- Section
- B
Frequently asked questions
- What does the 290 3B designation tell me?
- It covers the three main measurements: 290 mm diameter, 3 grooves and B section. Other combinations can be manufactured to order.
- Which belts fit this pulley?
- It takes B-section belts, the classic industrial profile. Make sure every pulley in the drive uses the same section so the belts seat correctly.
- How do I ask for an equivalent pulley?
- Send the part number 290 3B by WhatsApp or email, or give us your pulley's diameter, groove count and section. With that we can quote an equivalent or a custom-made one.

