Industrial pulley 650 mm, 2 grooves, section B

EMMAR POLEA 650 2B is a pulleys reference, within Power transmission. Request a quote for POLEA 650 2B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 650 2B pulley is a V-belt drive pulley, section B, with 650 mm diameter and two grooves. It is used to transmit power between parallel shafts in equipment working with moderate loads and medium speeds. As an in-house manufactured product, EMMAR brand, the bore, keyway and balancing can be adapted to the equipment's needs. It is a key part for maintaining the transmission ratio and drive performance.

This pulley has 650 mm outside diameter, 2 grooves and section B. The designation POLEA 650 2B summarizes those three variables: diameter, number of grooves and belt profile. Section B accepts V-belts of that profile, and the two grooves allow mounting two belts in parallel to distribute the load. The 650 mm diameter places it among large pulleys, typical of low-speed, high-torque shafts.

It is used in drives for mills, mixers, conveyor belts, high-flow pumps and industrial fans. It also appears in agricultural machinery and process equipment where speed reduction from an electric or combustion engine is needed. In all those cases, the 650 mm pulley with two section B grooves allows maintaining the drive with a single part and few adjustments.

To mount it, verify that the shaft bore matches the pulley diameter and that the key fits without play. Align the pulleys with a straightedge or laser to avoid uneven belt wear. Belt tension is adjusted according to the equipment manual; excessive tension stresses the bearings and low tension causes slipping. If the pulley will rotate at high speed, balancing is recommended.

If you need a different size, we can manufacture a pulley with another diameter, another number of grooves or for another belt section. We can also modify the bore, add a keyway or change the material. To do so, send us the part number POLEA 650 2B or the complete equipment designation by WhatsApp and we'll send you the quote with the available alternatives.

At MR Accesorios Industriales we have been manufacturing pulleys, split plummer block housings and ANSI chains for more than 80 years. If your equipment requires a 650 2B pulley, write to us on WhatsApp with the part number and we'll reply with the quote. We can also advise you if you need to replace an existing pulley or adapt the drive to a new motor.