Industrial pulley 70 mm, 3 grooves, section B

EMMAR POLEA 70 3B is a pulleys reference, within Power transmission. Request a quote for POLEA 70 3B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 70 3B pulley is a power transmission pulley of in-house manufacturing, EMMAR Accesorios Industriales brand. It has a 70 mm diameter, 3 grooves and section B. It is used to transmit motion from a motor to a machine by means of V-belts. Being a three-groove pulley, it allows mounting three belts in parallel on the same pulley, which distributes the load among them. It is a part designed for equipment that needs a compact drive with good pulling capacity.

This pulley has a 70 mm diameter, 3 grooves and section B. Section B corresponds to a medium-size V-belt profile, very common in industrial drives. The three grooves allow installing three belts of the same profile, which increases the contact surface and distributes the effort. The 70 mm diameter makes it suitable for transmission ratios where a certain speed reduction or increase is sought depending on how it is combined with the driven pulley. Manufacturing is in-house by MR, with dimensional and finish control.

It is used in machines and installations that require transmitting power between parallel shafts. It appears in compressors, fans, centrifugal pumps, conveyor belts, mixers and factory equipment. It is also used in the field, in agricultural implements and in irrigation systems. It is common to find it in equipment where space is limited and a three-groove pulley is needed so as not to lose pulling capacity. Being section B, it accepts belts of that profile, which are easy to find in the local market.

To mount it, verify that the shaft has the adequate diameter and keyway. The pulley must be aligned with the driven pulley to avoid uneven belt wear and vibrations. Belt tension is adjusted according to the equipment manual or the belt manufacturer's recommendations. If you replace an existing pulley, compare the number of grooves, the section and the outer diameter. Also check the condition of the keyway and the set screw. A misaligned pulley or one with worn grooves shortens belt life and generates noise.

If you need a pulley with a different number of grooves, another diameter or a different section, we can manufacture it or find an equivalent. For that, send us the part number of the part you are replacing, a photo or a sketch with the main measurements: outer diameter, shaft diameter, number of grooves and section. With that data we confirm whether we have a similar pulley or whether it is better to make a custom one. We can also advise you on the combination of pulleys to achieve the transmission ratio you are looking for.

To request a quote for this 70 3B pulley or ask about a variant, write to us on WhatsApp and send us the part number MR-POLEA-B3-70. We will reply with the alternatives. If you have doubts about the equivalence with another brand, send us the data and we will help you resolve it. At MR Accesorios Industriales we manufacture pulleys and other transmission components, and we can adapt to what your equipment needs.