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Single-groove pulley, cylindrical metal body with V-groove and central bore for shaft mounting · EMMAR POLEA 250 1A
Industrial pulley 250 mm, 1 groove, section A

EMMARIn-house manufacturingIn-house manufacturing

Industrial pulley 250 mm, 1 groove, section A

Manufacturer part numberPOLEA 250 1AAlso known as: POLEA2501A · POLEA250 1A
Brand
EMMAR
Subcategory
Pulleys
Section
A
Series
Sección A
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Description

EMMAR POLEA 250 1A 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 1A and any equivalents.

The 250 1A pulley from EMMAR is a single-groove, section A V-belt pulley with a 250 mm diameter. It is manufactured in-house by MR and is used to transmit motion from a motor to driven equipment. The pulley mounts on a shaft with a keyway and is suited to light and medium industrial applications.

The code 250 1A identifies the key dimensions: 250 mm outer diameter, one groove, and section A belt profile. This single-groove design accepts one classic A-section V-belt, making it appropriate for simple drive arrangements with a fixed transmission ratio. The pulley is cast and machined to fit the specified shaft, including a keyway sized to the bore.

Typical uses include machine tools, compressors, fans, centrifugal pumps, light conveyor belts, and general factory equipment. It often appears in drives where a smaller motor pulley works with a larger driven pulley to adjust shaft speed, or as a direct replacement in existing single-groove, section A systems.

When selecting this pulley, confirm the shaft diameter, keyway width, and center distance. Proper alignment with the driving pulley helps prevent uneven belt wear and vibration. Set belt tension according to the equipment manual or the belt manufacturer's guidance. If the shaft is stepped or has a non-standard diameter, note that when requesting a quote.

If you need a different number of grooves, another diameter, or a different belt section, MR can manufacture a custom pulley or help identify an equivalent. Provide the equipment details: shaft diameter, keyway dimensions, belt section, number of grooves, and the original pulley's outer diameter. With that information, a suitable pulley can be defined within the same manufacturing line.

To request a quote for this pulley or a variant, send the part number POLEA 250 1A via WhatsApp. If you are unsure about an equivalent, include a photo or the shaft measurements and the team will assist in identifying the correct part. MR Industrial Accessories LLC supplies pulleys, housings, and power transmission components for industrial equipment.

Dimensions

Size
250mm
Grooves
1
Section
A

Frequently asked questions

What does the designation 250 1A mean?
The 250 stands for the pulley diameter in millimeters, the 1 for the number of grooves, and the A for the V-belt section. This is a standard naming convention for transmission pulleys.
Can I use a section B belt with this pulley?
No, the groove is machined for section A. For a B belt, you need a pulley with that profile. If you require section B, ask about the corresponding variant.
How do I request a pulley with a different shaft diameter?
Send the shaft diameter, keyway width, and current pulley size via WhatsApp. With that data, we will quote a pulley from the same series with the appropriate bore.
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