Industrial pulley 300 mm, 3 grooves, section B

EMMAR POLEA 300 3B is a pulleys reference, within Power transmission. Request a quote for POLEA 300 3B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 300 3B pulley is a power transmission pulley manufactured by EMMAR Accesorios Industriales. It has a 300 mm diameter, 3 grooves and section B, which makes it suitable for mounting on shafts and transmitting motion through V-belts. It is used in machines, equipment and production lines where a reliable transmission ratio and good belt grip are needed. As it is in-house manufacturing, you can ask about variants and special sizes.

This pulley has a 300 mm outer diameter, 3 grooves and section B. Section B corresponds to classic-profile V-belts, and the 3 grooves allow mounting three belts in parallel to distribute the load. The 300 mm diameter defines the transmission ratio together with the driven pulley. It is a cast iron or machined steel part, depending on the application, and it is balanced to work at the usual speeds of belt transmission. MR manufactures it with dimensional control so that the grooves align with the belt.

It is used in belt transmissions of machine tools, compressors, fans, pumps, conveyor belts and process equipment. Also in agricultural and industrial applications where a medium-diameter pulley with several grooves is required to transmit power. Having 3 grooves, it is common in drives that need redundancy or greater torque capacity without increasing the diameter. Section B accepts standard-profile belts, which makes replacement easier.

To mount it, check that the shaft has the appropriate diameter and key, and that the pulley is aligned with the driven pulley to avoid uneven belt wear. The number of grooves must match the number of belts you are going to use. If you need to change the transmission ratio, keep in mind that the 300 mm diameter and the 3 grooves are fixed data for this part number; for another ratio, a different diameter is chosen. Belt tension is adjusted according to the equipment manual.

If you are looking for an equivalent or a nearby size, send us the full part number, the section and the number of grooves. We can also evaluate a pulley of another diameter or with a different number of grooves within the same section B. As it is in-house manufacturing, EMMAR brand, we have flexibility to adapt the bore machining and the keyway to your shaft. Ask us about special sizes or batches for replacement.

To request a quote for this 300 3B pulley or any other from the transmission line, write to us on WhatsApp with the part number MR-POLEA-B3-300. We will reply with the quote and the alternatives if you need another configuration. MR Accesorios Industriales manufactures and sells pulleys, housings and transmission components with more than 80 years of experience in the industrial market.