Industrial pulley 120 mm, 1 groove, section C

EMMAR POLEA 120 1C is a pulleys reference, within Power transmission. Request a quote for POLEA 120 1C via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The MR pulley, 120 mm and 1 groove for section C belts, is a power transmission part manufactured by EMMAR Accesorios Industriales. It is used to transmit motion between parallel shafts by means of a V-belt, in equipment where a simple and reliable transmission ratio is needed. Its 120 mm diameter and single groove make it suitable for low and medium power applications, and because it is in-house manufactured, you can ask about machining variants according to the equipment's needs.

This pulley has a size of 120 mm diameter, 1 groove and section C. Section C corresponds to a V-belt profile larger than sections A and B, so it is used in drives that require more torque capacity. The single groove allows only one belt, which simplifies assembly and alignment. The 120 mm diameter defines the transmission ratio together with the driven pulley. It is an in-house manufactured part, EMMAR brand, designed to replace worn pulleys or to build a new drive.

It is used in industrial machines such as compressors, fans, centrifugal pumps, conveyor belts and general drive equipment. It also appears in the agro-industrial sector and in maintenance workshops that replace pulleys due to groove wear or a change in transmission ratio. Because it is section C, it is common in medium-power equipment where the belt must withstand variable loads. If the original equipment comes with a 120 mm pulley with one C groove, this part can be the direct replacement, as long as the shaft diameter and the type of keyway are verified.

To mount it correctly, verify that the shaft diameter matches the pulley bore and that the keyway is compatible. Alignment between pulleys is key to avoid premature belt wear and vibration. Belt tension must be adequate according to the equipment manual: too loose it slips, too tight it overloads the bearings. If the pulley is mounted with a taper bushing, follow the torque recommended by the bushing manufacturer. In drives with more than one groove, the number of grooves must match the number of belts. If in doubt, consult the MR technical area.

If you need a pulley with another size, another number of grooves or a different section, you can request an equivalent or a nearby size. For that, send the current part number, the number of grooves, the belt section and the pulley outer diameter. A photo of the part and the shaft size also help. With those data, MR evaluates whether there is an in-house manufactured pulley that fits or whether a variant should be machined. The idea is that the equipment does not stop because of a pulley that cannot be found.

To request a quote for this MR pulley, 120 mm and 1 groove section C, write to us on WhatsApp and send the part number MR-POLEA-C1-120. If you have doubts about the equivalence with the pulley you are replacing, also send the shaft and keyway sizes. The MR Accesorios Industriales team responds with the technical information needed so that you buy the correct part.