Industrial pulley 70 mm, 4 grooves, section B

EMMAR POLEA 70 4B is a reference of pulleys, within Power transmission. Request a quote for POLEA 70 4B via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The 70 4B pulley is a V-belt drive pulley manufactured by EMMAR Accesorios Industriales. It has a 70 mm diameter and 4 grooves in section B, which allows transmitting motion between shafts using B-profile belts. It is used in machines, equipment and production lines where a reliable speed reduction or multiplication is required. Because it is in-house manufacturing, the machining and quality of the assembly are controlled.

This item is a pulley with a 70 mm diameter and 4 grooves in section B. Section B corresponds to a V-belt profile widely used in industrial power transmission. The 4 grooves allow mounting several belts in parallel on the same pulley, which distributes the load and improves drive reliability. The 70 mm diameter defines the transmission ratio when combined with another pulley in the same system. The designation POLEA 70 4B summarizes these characteristics: size, number of grooves and section.

Typical applications of a 4-groove section B pulley appear in drives for machine tools, compressors, fans, pumps, conveyor belts and process equipment. It is also used in transmissions where a certain redundancy is needed: if one belt fails, the remaining ones keep transmitting until it is replaced. In industrial plants, this type of pulley is found in test benches, mixers and suction systems. Its compact size makes it suitable for tight spaces where a larger diameter pulley does not fit.

To correctly select this pulley, take into account the pitch diameter, the number of grooves and the belt section. The 70 mm, 4-groove section B pulley must be mounted on a shaft whose diameter matches the central bore, which is defined according to the order. It is important to verify alignment between pulleys to avoid uneven belt wear and vibration. Balancing and concentricity influence the service life of the equipment's bearings. If the pulley is used in an existing system, it is advisable to review the transmission ratio and the permissible peripheral speed.

If you need an equivalent pulley, the most practical thing is to send us the part number of the original pulley or the equipment data: diameter, number of grooves, section and shaft diameter. With that data we tell you which POLEA 70 4B fits or we manufacture it with the same characteristics. Because it is in-house manufacturing, EMMAR brand, we have flexibility to adapt the bore, the keyway and other particularities. You do not need to have the data sheet at hand: a photo of the pulley and an approximate measurement are enough to guide you.

To request a quote for the 70 4B pulley or ask about a variant, send the part number by WhatsApp to MR Accesorios Industriales. We reply with the technical information and the quote. If you are replacing an existing pulley, attach a photo and the shaft measurements to speed up the response. We can also advise you on the appropriate section B belt for your application.