Industrial pulley 550 mm, 3 grooves, section B

EMMAR POLEA 550 3B is a pulleys reference, within Power transmission. Request a quote for POLEA 550 3B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 550 3B pulley is a V-belt drive pulley with section B, three grooves and 550 mm diameter. It is used to transmit power between parallel shafts in industrial equipment: fans, compressors, pumps, mills and conveyors. Because it is in-house manufactured, EMMAR brand, you can inquire about machining and balancing variants according to the application. If you need to replace an existing pulley or set up a new drive, send us the part number and the equipment data to request a quote.

This pulley has a 550 mm diameter, 3 grooves and section B. Section B is one of the most widespread V-belt sizes in industry, and with three grooves it can transmit more torque than a single-groove pulley of the same diameter. The 550 mm diameter defines the transmission ratio when combined with the pulley on the opposite shaft. It is an in-house manufactured part, EMMAR Accesorios Industriales brand, designed for continuous service in plant.

It is used in belt drives where speed must be reduced or increased between a motor and a machine. Typical applications: centrifugal and axial fans, screw and piston compressors, centrifugal pumps, mills, mixers, screens and conveyors. It also appears in mining, cement, food and water treatment equipment. In all cases it is advisable to verify the power to be transmitted, the shaft speed and the type of load before defining the pulley.

To select and mount a section B pulley with three grooves, take into account the motor power, the rpm of the fast shaft and the slow shaft, and the center distance. The number of grooves and the diameter determine how many belts are needed and what final speed is obtained. Verify the alignment between pulleys, the belt tension and the condition of the grooves: a worn groove accelerates belt wear. If the pulley is mounted on a shaft with a keyway, confirm the bore diameter and the type of fastening.

If you need an equivalent pulley or a nearby size, send us the part number POLEA 550 3B or the data of the original pulley: diameter, number of grooves, section, bore diameter and type of fastening. With that we check whether there is an in-house manufacturing variant that fits. We can also evaluate special machining, balancing and treatments according to the use. The more complete the equipment information, the faster the response.

To request a quote for this pulley or ask about another size, send the part number by WhatsApp to MR Accesorios Industriales. If you have doubts about the section, the number of grooves or the bore diameter, write to us with a photo or a sketch of the part and the equipment data. With more than 80 years in the field, at MR we work with transmission lines and in-house manufacturing to solve replacements and complete assemblies.