Industrial pulley 220 mm, 4 grooves, section B

EMMAR POLEA 220 4B is a pulleys reference, within Power transmission. Request a quote for POLEA 220 4B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 220 4B pulley is a V-belt drive pulley, section B, with a 220 mm diameter and four grooves. It is used to transmit power between parallel shafts in industrial equipment, where speed needs to be increased or reduced with a stable ratio. Because it is in-house manufactured, EMMAR brand, the machining of the groove and the balancing are controlled, two points that define the service life of the belt and the vibration level of the assembly.

This item is a pulley with a 220 mm diameter, 4 grooves and section B. Those three data points come from the designation POLEA 220 4B: the number indicates the measurement in millimeters and the 4B the number of grooves and the belt section it accepts. Section B corresponds to V-belts with a medium profile, the most common in industrial power transmissions of moderate power. The groove is machined so that the belt rests on the flanks and not on the bottom.

Typical applications are fans, centrifugal pumps, compressors, conveyor belts and machine tools. In all those cases the pulley works with one or more belts in parallel, and the number of grooves defines how much power can be transmitted without any belt being overloaded. It is also used in drive equipment where the speed of the driven shaft needs to be corrected by changing the diameter of the drive or driven pulley.

To mount and select a pulley of this type, first check the shaft diameter and the fastening system: keyway, taper bushing or set screw. Then check the alignment between pulleys, because angular or parallel misalignment accelerates belt wear. Tension is adjusted according to the equipment manual or with a tension gauge. If the pulley is mounted on a shaft that rotates fast, balancing should be checked to avoid vibrations.

If you need a different size or an equivalent pulley, send us the part number POLEA 220 4B by WhatsApp along with the shaft diameter and the number of grooves you are looking for. We can also check whether there is a pulley of another section or with more grooves that fits your drive. With that data we quote you and send you alternatives with no obligation.

At MR Accesorios Industriales we have been manufacturing pulleys and other power transmission components for more than 80 years. If you have questions about the 220 4B pulley or want us to send you a quote, write to us by WhatsApp with the item part number and your equipment data. We reply with the technical information you need to decide.