Industrial pulley 400 mm, 6 grooves, section B

EMMAR POLEA 400 6B is a pulleys reference, within Power transmission. Request a quote for POLEA 400 6B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 400 6B pulley is a V-belt drive pulley, section B, with a 400 mm diameter and 6 grooves. It is used to transmit power between parallel shafts in industrial equipment, where the load must be distributed among several belts and rotation speed maintained with few losses. It is an in-house manufactured part, EMMAR Accesorios Industriales brand, designed to replace worn pulleys or to build a new drive.

This pulley has a 400 mm diameter, 6 grooves and section B. Section B defines the groove profile and the width of the corresponding belt; the 6 grooves allow that number of belts to be mounted in parallel, which distributes the effort and reduces the load on each one. The 400 mm diameter sets the transmission ratio together with the driven pulley. It is a cast iron pulley, machined in the grooves and with the bore and keyway ready for the shaft. As it is in-house manufactured, EMMAR brand, variants in diameter, number of grooves or bushing type can be requested.

It is used in machine and equipment drives where fans, compressors, pumps, conveyor belts or mills need to be driven. It also appears in test benches, mixers and process equipment. The combination of 6 grooves with section B is common when the power to be transmitted is high and stable operation is sought, with less vibration and less slippage than in single-belt drives. If the equipment runs many hours per day, the multi-groove pulley helps make belt changes less frequent.

To install it, check that the bore and keyway match the shaft, and that the pulley is aligned with the driven one. Misalignment, even small, wears the grooves and belts unevenly. Tension the belts according to the equipment manual and check that all have the same length and tension. If the pulley is going to rotate at high speed, it is advisable to check the balance. When selecting, take into account the power, the shaft RPM and the diameter of the driven pulley to define the transmission ratio.

If you need a pulley with a different number of grooves, another diameter or a different section, an equivalent or a nearby size can be requested. To do so, send the part number of the original pulley, a photo of the part and the equipment data: outside diameter, number of grooves, belt section and shaft diameter. With that data, the pulley that best fits is found. If there is no exact size, manufacturing a custom pulley is evaluated.

To request a quote for this 400 6B pulley or ask about a variant, send the MR-POLEA-B6-400 part number by WhatsApp to MR Accesorios Industriales. You can also write the part number of the pulley you want to replace and the shaft dimensions. With more than 80 years in the field, MR manufactures and sells pulleys, housings and power transmission for industrial equipment.