Industrial pulley 300 mm, 7 grooves, section C

EMMAR POLEA 300 7C is a pulleys reference, within Power transmission. Request a quote for POLEA 300 7C via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 300 7C pulley is a V-belt drive pulley, section C, with a 300 mm diameter and 7 grooves. It is used to transmit power between parallel shafts in industrial equipment, where the load needs to be distributed across several belts and the rotation speed kept within a stable range. It is in-house manufacturing, EMMAR Accesorios Industriales brand, designed for replacements and new assemblies in plants, workshops and production lines.

This item is a pulley with a 300 mm diameter, 7 grooves and section C. Section C corresponds to wide-profile V-belts, and the 7 grooves allow seven belts to be mounted in parallel on the same pulley. The 300 mm diameter defines the drive ratio when combined with another pulley in the same system. The number of grooves directly affects the power the assembly can transmit: at the same diameter, more grooves mean more belts working and less load per belt.

It is used in belt drives on equipment such as compressors, fans, centrifugal pumps, mills, conveyor belts and machine tools. It also appears in gear reducers and multipliers where a fixed drive ratio and a certain capacity to absorb vibrations are needed. In process plants, this type of pulley is chosen when the motor shaft and the driven shaft are at a distance that is not practical to cover with gears or rigid couplings.

For mounting, check that the shaft diameter and keyway match the pulley bore, and that the belt section is C. Align the pulleys with a straightedge or laser before tensioning: angular or parallel misalignment accelerates belt and bearing wear. Tension is adjusted according to the equipment manual or with a belt tension gauge. Check balancing if the rotation speed is high and verify the direction of rotation if the pulley has asymmetric grooves.

If you need an equivalent pulley or a nearby size, send us the full part number, the number of grooves, the section and the outside diameter marked on the part. A photo of the old pulley with a ruler next to it and the shaft data also works. With that, we check whether we have an in-house manufactured pulley that fits or whether it is better to machine one to measure. You don't need to have the drawing: the part data is enough to guide the search.

MR Accesorios Industriales manufactures this pulley and other section C pulleys in different sizes and numbers of grooves. If you have doubts about the equivalence with the pulley you are replacing, write to us on WhatsApp with the part number MR-POLEA-C7-300 or with the data of the original part. We will reply with the alternative that best suits your drive and arrange the quote.