Industrial pulley 250 mm, 4 grooves, section B

EMMAR POLEA 250 4B is a reference of pulleys, within Power transmission. Request a quote for POLEA 250 4B via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The 250 4B pulley is a V-belt drive pulley manufactured by EMMAR Accesorios Industriales. It has a 250 mm diameter, 4 grooves and section B. It is used to transmit power between parallel shafts in industrial machines and equipment, where a reliable and easy-to-maintain transmission ratio is required. Because it is in-house manufactured, you can ask about machining and finishing variants for your application.

This MR pulley has a 250 mm outside diameter, 4 grooves and section B. Section B corresponds to classic V-belts with a B profile, which rest on the groove walls. The 4 grooves allow more power to be transmitted than a single-groove pulley of the same diameter, while keeping the same pitch diameter. It is designed to be mounted on shafts with a keyway and secured with a set screw or taper bushing, depending on the equipment design.

It is used in fans, pumps, compressors, conveyor belts, mixers and machine tools. Also in refrigeration equipment and in low- and medium-speed drives where simple maintenance and available spare parts are sought. As a section B pulley, it is common in installations that already have belts of that profile and need to replace or add grooves without changing the entire drive.

To select it, take into account the pitch diameter, the number of grooves, the shaft diameter and the type of fastening. Verify that the pulley is aligned with the drive pulley to avoid uneven belt wear. Tension must be the one recommended by the belt manufacturer. If the equipment works with variable loads, it is advisable to review the power to be transmitted and the rotation speed before defining the number of grooves.

If you need a different size, a larger or smaller diameter, or a pulley with a different number of grooves, we can manufacture it. We can also quote a pulley equivalent to the one you are using, if you send us the part number or the shaft and groove dimensions. We work with drawings or samples. Ask us about special machining, balancing or surface treatments.

To order this pulley or a variant, send the part number POLEA 250 4B via WhatsApp to MR Accesorios Industriales. If you have doubts about the equivalence with another brand, send us a photo of the old pulley and the shaft dimensions. We will reply with the option that best suits your equipment.