Industrial pulley 250 mm, 6 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 250 6B 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 250 6B and any equivalents.
The 250 6B is a section B V-belt pulley with a 250 mm diameter and six grooves. It mounts on a machine shaft to transmit torque from a motor and set speed through the ratio of diameters. This cast and machined part is built by EMMAR for continuous industrial duty as part of MR's power transmission line.
With a 250 mm outside diameter, six grooves, and a section B profile, this pulley suits drives that need dependable power transfer. Section B is a common V-belt size in industrial settings, and six grooves let the load be shared across multiple belts, adding capacity and giving some tolerance if one belt fails. The 250 mm diameter works with the motor pulley to establish the drive ratio. As an in-house manufactured EMMAR part, it features machined grooves and balancing for smooth rotation.
Typical applications include screw compressors, industrial fans, centrifugal pumps, conveyor belts, mixers, and process equipment driven by electric motors or gear reducers. You will also find them in agricultural implements and treatment plants. In equipment that runs many hours a day, a cast pulley with accurately machined grooves helps extend belt service life and keep noise down.
During installation, make sure the shaft and keyway are clean and free of burrs, and that the fit prevents radial play. Align pulleys with a straightedge or laser; even a few degrees of misalignment will speed up belt and bearing wear. Set belt tension per the machine manual—if unavailable, aim for a small deflection when pressed with a finger. For high-speed operation, check balancing.
To find a replacement, provide the complete part number, number of grooves, and diameter. Also useful: belt section, shaft diameter, and keyway type. With that information, we can check if a pulley in our line matches or if a custom-made unit is better. If the original marking is illegible, send a photo and caliper measurements.
MR manufactures pulleys, split plummer block housings, and ANSI chains, and supplies bearings, seals, bushings, and lubricants. If this 250 6B pulley fits your equipment, send the part number by WhatsApp or email for a quote. If you are unsure of the size, contact us anyway—we will help you identify it with the data you have.
Dimensions
- Size
- 250mm
- Grooves
- 6
- Section
- B
Frequently asked questions
- What does section B mean for this pulley?
- Section B is the V-belt profile that fits the pulley grooves, defining groove width and depth. It is common in medium-power industrial drives and is not interchangeable with sections A, C, or 5V.
- Can I replace a pulley from another brand with this one?
- Yes, if the diameter, number of grooves, belt section, and shaft diameter with keyway match. Send us that data or the original part number, and we will confirm the equivalence. We can also manufacture a pulley to your dimensions.
- How can I tell if the pulley is worn?
- Look for grooves that have widened, belts sinking deeper than normal, slipping or coming off, shaft play, or unusual noise. If these symptoms appear, remove the pulley and measure groove width with a caliper. If out of tolerance, replace it.