Industrial pulley 250 mm, 2 grooves, section B

EMMAR POLEA 250 2B is a pulleys reference, within Power transmission. Request a quote for POLEA 250 2B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The POLEA 250 2B pulley is an industrial pulley with a 250 mm diameter, with two grooves for section B belts. It is designed to transmit power in machines and equipment that run with moderate drive ratios and need two belt lines to spread the load. It is an in-house manufactured part, EMMAR Accesorios Industriales brand, designed to replace worn pulleys or to build new drives with components available on the local market.

The POLEA 250 2B has a 250 mm diameter, 2 grooves and section B. Those are the data points that define its use: the diameter sets the peripheral speed for a given speed, the two grooves allow two B belts to be mounted in parallel and section B limits the belt type it takes. The groove machining and balancing are the points that determine whether the pulley will run without vibration or premature belt wear.

It is used in belt drives of machine tools, compressors, fans, centrifugal pumps, conveyor belts and process equipment. It also appears in the field, in agricultural implements and in treatment plants. In all those cases it performs the same function: taking the motor's rotation and transmitting it to the driven shaft with the ratio the equipment requires, absorbing the load variations typical of startup.

To select it, start from the power to be transmitted, the RPM of the drive shaft and those of the driven shaft. Those data define the pitch diameter, the number of grooves and the belt section. Check the bore diameter, the keyway type and the shaft fastening system. If the pulley is mounted on a shaft with axial load, it is advisable to check the support and the alignment between pulleys before tensioning the belts.

If you need a nearby size, a different number of grooves or a different section, it can be ordered. Send the part number POLEA 250 2B, the diameter size you are looking for, the number of grooves and the belt section. With that data the equivalent is identified or manufacturing is evaluated. It also works if you have an old pulley without identification: send the outside diameter, the overall width and a photo of the groove.

To request a quote for the POLEA 250 2B or ask about a variant, send the part number by WhatsApp to MR Accesorios Industriales. If the equipment is down, mention it in the message and add the shaft data and the belts you are using. With that, we reply with the alternative that best fits what you need to mount.