Industrial pulley 170 mm, 3 grooves, section A

EMMAR POLEA 170 3A 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 170 3A and any equivalents.

The EMMAR 170 3A is a V-belt pulley with a 170 mm diameter, three grooves, and section A profile. It transmits torque between parallel shafts at a fixed ratio, relying on the belts seated in each groove for grip. Because MR manufactures this pulley in-house, the groove machining and balancing are controlled to help the belts run evenly and wear predictably.

The designation tells you the key details: 170 is the diameter in millimeters, 3 is the number of grooves, and A is the belt section. The groove profile is cut to match section A belts, so using any other section can lead to poor seating, slipping, or premature flank wear. The pulley mounts on a shaft and transfers motion through the belts that ride in the grooves.

Typical uses include fans, compressors, centrifugal pumps, conveyors, and general factory machinery with parallel-shaft belt drives. In agricultural or outdoor settings, you will find it on mixers, augers, and elevators where conditions are tough. Three grooves let you distribute the load across multiple belts, which adds transmission capacity and gives some redundancy if one belt fails. As a wear part, it deserves a look whenever vibration or unusual noise shows up.

During installation, confirm that the shaft diameter and key fit the pulley bore, and that the driving and driven pulleys are aligned. Even slight misalignment can wear belt flanks and cause vibration. Set tension according to the equipment manual or standard practice: too loose and the belt slips, too tight and you load the shaft bearings. Before startup, turn the pulley by hand to check for rubbing and make sure the belts sit properly in all grooves.

If you need a different size or an equivalent pulley, send the complete part number, the number of grooves, and the belt section. With that information, we can check whether another size in the same line fits or if manufacturing is the better route. We can also help if the original equipment uses a different groove count and you want to keep the same transmission ratio. The more details you provide, the more accurate our response.

To request a quote for the 170 3A pulley, send part number MR-POLEA-A3-170 via WhatsApp to MR Industrial Accessories. We will reply with technical information. If you are assembling a complete drive, ask about section A belts and the bushings or hubs needed for mounting.