Industrial pulley 280 mm, 4 grooves, section A

EMMAR POLEA 280 4A 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 4A and any equivalents.

This EMMAR pulley measures 280 mm in diameter and carries four grooves for section A V-belts. It mounts on a shaft and transfers motion through the belts, and the combination of size and groove count lets you spread the drive load across multiple belts or multiply capacity. Because MR produces it in-house, the dimensions and balance are held to a consistent standard.

The code POLEA 280 4A tells you the essentials: 280 mm diameter, four grooves, section A. Section A is a classical V-belt profile, so this pulley fits drives that run at moderate power and ordinary speed ratios. In-house production at MR covers the materials and machining steps that keep the pulley concentric and the groove surfaces clean.

You will see this size on machine tools, compressors, fans, centrifugal pumps and similar plant equipment. Four grooves also give a degree of redundancy: if one belt breaks, the drive keeps running on the remaining belts until you replace it. Speed changes are usually handled by swapping the driving or driven pulley to a different diameter.

When you select this pulley, check that 280 mm suits the allowable peripheral speed of a section A belt and the power you need to move. The groove count should match your power demand and service conditions. At installation, line up the pulleys, tension the belts correctly and use the keyway or fastening method called for by the shaft. Balance matters most at higher rpm.

Need a different groove count, diameter or section? We can build it or locate an equivalent. Just send the code POLEA 280 4A, or give us the diameter, number of grooves and section you want. We can also help you pick the driving or driven pulley that gives the ratio you are after, so the part you receive is the one that fits.

For a quote on this pulley or a variant, message us on WhatsApp with the code POLEA 280 4A. We will come back with the technical details you need to decide. If you are unsure about the application, describe the equipment you are assembling or repairing and we will point you in the right direction.