Industrial pulley 380 mm, 4 grooves, section B

EMMAR POLEA 380 4B is a pulleys reference, within Power transmission. Request a quote for POLEA 380 4B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 380 mm industrial pulley with 4 grooves, section B, is a power transmission component mounted on the motor or driven machine shaft to transmit motion through V-belts. Its diameter and number of grooves allow it to handle high torques in continuous-duty equipment such as fans, pumps, compressors and conveyors. MR Accesorios Industriales manufactures it with dimensional control so it fits without improvised adjustments in the transmission line.

This item is a pulley with a 380 mm diameter, 4 grooves and section B, according to the designation POLEA 380 4B. Section B corresponds to classic-profile V-belts, and the four grooves allow the load to be distributed among several belts to transmit more power without increasing the diameter. It is designed to be mounted on standard shafts and aligned with the driven pulley within the same transmission ratio.

It is used in drives where speed needs to be reduced or increased with a fixed ratio: centrifugal fans, water pumps, screw compressors, conveyor belts and machine tools. It also appears in plant equipment where radial space is limited and it is better to distribute power across several grooves instead of using a larger-section belt. It is a common replacement part in corrective maintenance and in replacements due to groove wear.

To select it, verify that the belt section matches section B and that the number of grooves is the one required for the power to be transmitted. Check the pitch diameter, the bore and the type of shaft fixing before mounting. Alignment between pulleys and correct belt tension are key to avoiding vibrations and premature wear. If the original pulley has a keyway or taper bushing, confirm it with the manufacturer's data sheet.

If you need a nearby size or an equivalent, send us the complete part number, the section, the number of grooves and the diameter shown on the old pulley. With that data we can offer you an alternative from our in-house manufacturing line or advise you whether the mounting should be modified. We can also evaluate variants with a different number of grooves within the same section to adjust the transmission.

MR Accesorios Industriales manufactures this pulley and other power transmission parts in its factory, with more than 80 years of experience in the field. To request a quote, write to us on WhatsApp with the part number POLEA 380 4B and we will reply shortly with the bore machining options.