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Single-groove pulley in profile view, with circular rim and through bore for shaft · EMMAR POLEA 400 1B
Industrial pulley 400 mm, 1 groove, section B

EMMARIn-house manufacturingIn-house manufacturing

Industrial pulley 400 mm, 1 groove, section B

Manufacturer part numberPOLEA 400 1BAlso known as: POLEA4001B · POLEA400 1B
Brand
EMMAR
Subcategory
Pulleys
Section
B
Series
Sección B
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Description

EMMAR POLEA 400 1B 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 400 1B and any equivalents.

The POLEA 400 1B is an EMMAR industrial pulley with a 400 mm diameter and a single groove for a section B V-belt. It mounts on a machine shaft and transmits power to a driven shaft. Because it is manufactured in-house, the bore, keyway and groove can be machined to suit the equipment it will run on.

The part number breaks down into three selection variables: 400 is the outside diameter in millimeters, 1 is the number of grooves, and B is the V-belt section the groove accepts. The groove is cut at the angle that matches a section B belt so the belt seats properly. Depending on the application, the pulley is made of cast iron or steel, and it is balanced to rotate without vibration at normal working speeds.

Single-groove pulleys like this one are common on drives that need one fixed ratio and good belt wrap. Typical equipment includes compressors, fans, centrifugal pumps, conveyors, mixers and general factory machinery. They also appear in reducers and multipliers. Because there is only one groove, the pulley is usually found in low or medium power drives, or in setups where several pulleys are combined to reach the total ratio.

When selecting or replacing the pulley, confirm the pitch diameter, belt width, shaft diameter and keyway type. Check alignment with the driven pulley and verify belt tension: a pulley that is off-center or a belt that is too loose or too tight will shorten the life of the shaft bearings. On drives with variable loads or frequent starts, review the service factor and balancing requirements.

If the existing pulley is a different size, MR can manufacture one with another diameter, a different number of grooves or for another belt section. The bore and keyway can also be machined to match your shaft. To get a quote, send the part number POLEA 400 1B or the equipment data: diameter, grooves, section and shaft diameter. If you are unsure of the size, send a photo of the old pulley or measurements taken with a caliper, and the team will help identify the correct part.

MR Industrial Accessories LLC supplies this pulley along with belts, bearings, mounted units and housings. Customers in the United States and several Latin American countries request quotes by part number through WhatsApp or email, and the team replies promptly and can suggest equivalents when needed.

Dimensions

Size
400mm
Grooves
1
Section
B

Frequently asked questions

What does the code POLEA 400 1B indicate?
It identifies a pulley with a 400 mm diameter, 1 groove and section B. It is the reference used for this in-house manufactured item. Other sizes or groove counts can be manufactured to order.
Which belt fits this pulley?
A section B V-belt. The groove is machined with the matching angle so the belt seats correctly. If your drive uses section A or C, a different pulley is required.
How do I request a pulley in another size?
Send the diameter, number of grooves, belt section and shaft diameter by WhatsApp or email. With those details the team can quote a custom pulley. If you send measurements or a photo of the existing part, they can also work from that.
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