Industrial pulley 150 mm, 4 grooves, section C

EMMAR POLEA 150 4C is a pulleys reference, within Power transmission. Request a quote for POLEA 150 4C via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 150 4C pulley is a V-belt drive pulley, section C, with four grooves and a 150 mm diameter. It is used to move shafts from a motor, distributing the power among four belts to achieve more torque and better load distribution. It is an in-house manufactured part, EMMAR brand, MR Accesorios Industriales, designed for equipment that works under continuous effort and needs a robust, balanced pulley with precisely machined grooves so the belts seat well and last.

This pulley has a 150 mm diameter, 4 grooves and section C. Section C corresponds to V-belts with a wide profile, the ones used when a fair amount of power has to be transmitted with few belts. The four grooves allow the load to be distributed among four belts, so each one works with less tension and the assembly lasts longer. The 150 mm diameter defines the transmission ratio when combined with the motor pulley: the larger the driven pulley diameter, the more the speed is reduced and the more torque is gained. It is an in-house manufactured pulley, EMMAR brand, with machined grooves so the belt rests on the flanks and not on the bottom.

Typical applications are heavy transmission equipment: screw compressors, high-flow industrial fans, mills, mixers, conveyor belts and continuous production machines. In all those cases the goal is for the pulley to have enough mass to absorb vibrations and for the grooves to be aligned so the four belts work evenly. It is also used to replace worn pulleys, when the grooves become deformed or polished and the belt slips or comes off. Being section C, it is compatible with belts of that profile, which are the ones available at any power transmission supplier.

To mount this pulley, first check that the shaft has the correct diameter and keyway: the pulley is fixed with a key and set screw or with a taper bushing, depending on the case. Align the motor pulley and the driven pulley with a straightedge or a laser; a misalignment of a few degrees makes the belts wear on one side and the equipment's bearings suffer. Tension the belts according to the belt manufacturer's manual, no more than necessary. If you are going to replace a pulley, check that the section and the number of grooves are the same, and that the outside diameter matches that of the old pulley so you don't change the transmission ratio.

If you need a pulley with a different number of grooves, a different diameter or a different section, it can be manufactured. To order an equivalent or a nearby size, send us the part number POLEA 150 4C or the data of the original pulley: outside diameter, number of grooves, belt section and shaft diameter with its keyway. With that data we'll tell you if we have a similar pulley in the line or if it is better to manufacture it. We can also quote the complete assembly with bushing, key and screws if you need it.

To get a quote for this pulley or ask about a special size, write to us by WhatsApp and send us the part number POLEA 150 4C. We'll reply with the manufacturing alternatives. If you have doubts about the section or the number of grooves, send us a photo of the old pulley or the shaft measurements and we'll help you identify the correct part.