Industrial pulley 70 mm, 4 grooves, section A

EMMAR POLEA 70 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 70 4A and any equivalents.

The EMMAR 70 4A is a V-belt pulley built for industrial drives that need four section A belts on a compact 70 mm diameter. Because it is produced in-house, the bore, keyway and hub length can be matched to the shaft you are working with.

With four grooves, this pulley spreads the load across four section A belts instead of one, giving more transmission capacity than a single-groove unit of the same diameter. The 70 mm diameter is on the small end of the line, so check that the pitch diameter matches what your drive calculation calls for before ordering. Bore, keyway and balancing are set during manufacturing.

Typical installations include machine tools, compressors, fans, centrifugal pumps, conveyors and other plant equipment where space is tight. It also suits drives that need to step motor speed down with a small belt count while keeping the assembly compact. Since the pulley is made in-house, bore diameter and hub length can be adapted to standard shafts or to a shaft already on the machine.

To select the right pulley, begin with the power to be transmitted and the RPM of both the drive and driven shafts, then work out the pitch diameter from the drive calculation. Confirm the groove count next: four section A grooves cover a power range that should be checked against the belt manufacturer's table. At assembly, align the pulleys with a straightedge or laser, tension the belts to the recommended deflection and make sure no belt is looser than the others. Misalignment or uneven tension shortens belt life and can damage shaft bearings.

If you need a different diameter or more grooves, the pulley can be manufactured to order in the same section A. To request an equivalent, send the original pulley's part number, groove count, belt section and pitch diameter; that information defines the part. A shaft drawing is even better, because the bore and keyway are adjusted to that dimension. We can also review whether a section B pulley would work if the drive permits it.

MR Industrial Accessories supplies this pulley as part of its power transmission line. If you already have the code POLEA 70 4A, send it by WhatsApp or email and we will reply with a quote and the machining options. If you need another size, describe the application and we will help you choose the right pulley.