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Fixed hub pulley, cylindrical metal body with multiple V-grooves and solid center · EMMAR POLEA 380 5B
Industrial pulley 380 mm, 5 grooves, section B

EMMARIn-house manufacturingIn-house manufacturing

Industrial pulley 380 mm, 5 grooves, section B

Manufacturer part numberPOLEA 380 5BAlso known as: POLEA3805B · POLEA380 5B
Brand
EMMAR
Subcategory
Pulleys
Section
B
Series
Sección B
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Description

EMMAR POLEA 380 5B 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 380 5B and any equivalents.

The POLEA 380 5B is a section B V-belt pulley built in-house under the EMMAR brand. It measures 380 mm across, carries five grooves, and drives motion between shafts wherever a machine needs a set speed ratio. It mounts on a keyed shaft with set screws, or on a taper bushing, depending on how the equipment is set up.

The part number itself tells you most of what you need. POLEA 380 5B combines the 380 mm diameter, the five groove count, and the section B belt profile. Grooves dictate how many belts the pulley can carry, so five of them let the drive handle more power than a unit with fewer grooves. Section B identifies which belt profile fits the sheave.

You will find this size in belt drives on machine tools, compressors, fans, pumps, mills, conveyors, and other process equipment. It also fits situations where someone is changing a transmission ratio or swapping out a sheave that has worn. Within section B, a five groove unit suits medium to high power drives, as long as the drive calculation backs it up.

Before mounting, confirm the shaft diameter and how the pulley fastens: keyway, set screw, or taper bushing. Line the pulleys up with each other so the belts do not wear unevenly and the drive does not vibrate. Set belt tension the way the equipment manual or the belt supplier calls for. If you are replacing an existing sheave, check diameter, groove count, section, and bore type against the old one first.

To get a quote on an equivalent, send the part number POLEA 380 5B by WhatsApp along with the shaft diameter, the fastening method, and a photo of the old pulley if you have one. With that information we can tell you whether the same series includes another diameter or groove count, or whether a made-to-order pulley makes more sense. We can also point you to the right belt.

MR manufactures pulleys and other power transmission parts. If your equipment runs a 380 mm, five groove, section B pulley, message us on WhatsApp with the part number and your shaft details. We will quote it and help you get the drive set up correctly.

Dimensions

Size
380mm
Grooves
5
Section
B

Frequently asked questions

What does the designation POLEA 380 5B tell me?
It gives you the three key figures: a 380 mm diameter, five grooves, and section B. The section tells you which belt profile fits, and the groove count tells you how many belts the pulley can run.
How can I check whether this pulley will replace the one on my machine?
Match up the outer diameter, groove count, belt section, and bore size, including whether it uses a keyway or a bushing. If all of those line up, it will work. Send us a photo and the measurements by WhatsApp if you want a second look.
Can I get a pulley with a different diameter or groove count?
Yes. We build section B pulleys in a range of sizes and groove counts. Send the diameter, grooves, section, and shaft data through WhatsApp, and we will quote the option that fits your drive.
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