Industrial pulley 360 mm, 3 grooves, section B

EMMAR POLEA 360 3B is a pulleys reference, within Power transmission. Request a quote for POLEA 360 3B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 360 3B pulley is a V-belt drive pulley, section B, with a 360 mm diameter and three grooves. It is used to transmit power between parallel shafts in industrial equipment, where speed needs to be increased or reduced and several belts need to work together. It is in-house manufactured, EMMAR Accesorios Industriales brand, which allows control over groove machining, balancing and bore concentricity. It mounts on shafts with a keyway and is aligned with the drive pulley to prevent uneven wear.

This pulley has a 360 mm diameter, 3 grooves and section B. Section B defines the groove profile and the corresponding belt width; the three grooves allow three identical belts to be mounted in parallel, which distributes the load and provides redundancy if one breaks. The 360 mm diameter is a common pitch dimension in medium-speed machines. The bore, keyway and shaft mounting system are defined according to the equipment where it is installed, and are confirmed against a drawing or sample before manufacturing.

It is used in drives for machine tools, compressors, fans, centrifugal pumps, conveyor belts and process equipment. It also appears in gearboxes and drive shafts in food, chemical and aggregate processing plants. When the original equipment comes with a three-groove pulley, replacing it with one of the same diameter and section maintains the drive ratio and the driven shaft speed. If the diameter is changed, the speed changes and the entire drive train must be reviewed.

To select correctly, verify the pitch diameter, belt section, number of grooves and shaft diameter with its keyway. Installation requires cleaning the shaft and bore, checking for burrs, aligning the pulleys with a straightedge or laser and tensioning the belts according to the equipment manual. An off-center or misaligned pulley generates vibration, heating and irregular groove wear. It is advisable to check the condition of the belts and replace them all together if the set has more than one.

If you need a nearby size, a different number of grooves or a pulley for a different shaft, it can be custom manufactured. To request an equivalent or a variant, send the part number POLEA 360 3B along with the shaft diameter, keyway width and a photo or sketch of the original pulley. With that data the machining is defined and the quote is prepared. They can also be combined with section B belts and with bushings or hubs if the installation requires it.

MR Accesorios Industriales manufactures this pulley at its plant and sells it together with belts, bushings and power transmission elements. If you have doubts about the equivalence with an existing pulley, write to us on WhatsApp with the part number and the equipment data. We will reply with the alternative that best suits your machine.