Industrial pulley 90 mm, 3 grooves, section B

EMMAR POLEA 90 3B 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 90 3B and any equivalents.

The EMMAR 90 3B is a V-belt drive pulley that measures 90 mm across and carries three grooves for section B belts. It transfers power from a motor to a driven shaft through three belts running side by side. MR manufactures this pulley in-house, so it is not a third-party catalog item. It is built for assembling drives in plants, workshops and process equipment. To replace an existing pulley or set up a new drive, send the part number and we will quote it.

The code POLEA 90 3B tells you the three key variables: a 90 mm outside diameter, three grooves, and a belt profile of section B. Each groove is machined so the belt contacts the flanks rather than the bottom, which is how a V-belt drive transmits force. This pulley is manufactured by MR under the EMMAR brand.

Typical applications include fans, compressors, pumps, conveyor belts and machine tools, where the load is shared across three belts. It also fits process equipment that needs the driven shaft to run at a different speed from the motor, and it serves as a replacement for worn or broken pulleys. Three grooves allow more power than a single-groove pulley of the same diameter, provided the shaft and tensioner can support it.

During installation, confirm that the shaft diameter matches the pulley bore and that the key seats without play. Align the pulleys using a straightedge or alignment laser; angular or parallel misalignment wears both the belt and the grooves. Set tension according to the equipment manual or with a tension meter. If no data is available, aim for the belt not to slip on startup and not to be overloaded. Inspect the grooves for burrs or flank wear.

If you need an equivalent pulley, provide the full part number, the number of grooves and the belt section. With that information we can check whether another diameter in section B works or whether switching to a different section is better. We can also assess machining the bore and keyway to match your shaft. The more precise your details, the faster we can offer a useful alternative.

To request a quote for this pulley or ask about another size, send the part number POLEA 90 3B to MR Industrial Accessories via WhatsApp or email. A photo of the old pulley or the shaft drawing helps us confirm grooves, section and bore before manufacturing. We handle technical inquiries from workshops, plants and maintenance teams.