
Industrial pulley 280 mm, 1 groove, section A
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- A
- Series
- Sección A
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Description
EMMAR POLEA 280 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 280 1A and any equivalents.
This EMMAR pulley, identified as POLEA 280 1A, is a single-groove V-belt sheave with a 280 mm diameter for section A belts. It mounts on a machine shaft to transfer motion through a belt, commonly found on fans, pumps, compressors and conveyors where a fixed speed ratio is needed. MR produces it in-house with controlled machining so the groove and bore fit properly.
The code POLEA 280 1A tells you the key specs: a 280 mm outside diameter, one groove, and section A. Section A refers to narrow-profile V-belts. Because MR manufactures this pulley, the groove angle and depth are machined to match the belt, and the diameter and number of grooves can be adapted if your equipment requires it.
A single-groove section A pulley like this is typically used on machines that transmit moderate power at medium speeds, such as centrifugal fans, water pumps, air compressors, light conveyors and general factory equipment. It works as either the drive or driven pulley in systems where a simple, fixed transmission ratio and easy maintenance are priorities. With a 280 mm diameter, it often fits shafts up to 38 mm, but the bore is determined per order.
When choosing this pulley, consider the power to transmit, the shaft RPM and the section A belt you plan to use. Confirm that the pitch diameter matches your belt length and that the number of grooves equals the number of belts in the drive. During installation, check concentricity with the shaft and alignment with the other pulley to prevent unnecessary wear. If you need more grooves or a different diameter, MR can manufacture it.
If POLEA 280 1A is not exactly what you need, MR can suggest an equivalent. Just send the original part number, the number of grooves, the section and the diameter from the machine nameplate or manual via WhatsApp. Custom pulleys are also possible if you provide a sketch with the main dimensions.
To request a quote for this pulley or ask about a variant, contact MR on WhatsApp and mention POLEA 280 1A. The team will reply with suitable alternatives for your equipment. If you need technical guidance, they can help you define the correct pulley for the application.
Dimensions
- Size
- 280mm
- Grooves
- 1
- Section
- A
Frequently asked questions
- What does POLEA 280 1A mean?
- It designates a pulley with a 280 mm diameter, one groove and section A. This is the code used within MR's in-house manufacturing line. Other combinations of diameter, grooves or section can be produced.
- What type of belt does this pulley use?
- It is made for section A V-belts, which are narrow profile. Belts of other sections such as B, C or SPZ will not fit. If your machine uses a different section, MR can offer the right pulley.
- Can I order a pulley with more grooves or a different diameter?
- Yes, since it is in-house manufacturing under the EMMAR brand, MR can produce pulleys with the number of grooves and diameter you specify. Send your equipment details via WhatsApp for a quote on the custom part.

