Industrial pulley 800 mm, 4 grooves, section B

EMMAR POLEA 800 4B is a pulleys reference, within Power transmission. Request a quote for POLEA 800 4B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 800 4B pulley is a V-belt drive pulley with Section B, 800 mm diameter and 4 grooves. It is used to drive large shafts in milling, ventilation, pump and conveying equipment, where power must be transmitted with several belts in parallel. It is in-house manufacturing, EMMAR brand, which allows the machining and balancing to be adjusted according to the application.

This item is a pulley with 800 mm diameter, 4 grooves and Section B. The designation POLEA 800 4B summarizes those three variables: the outside diameter, the number of grooves and the belt profile it accommodates. The grooves are machined for Section B V-belts, so that the four belts work in parallel on the same hub. It is a power transmission part designed to be mounted on a shaft and receive torque from a motor or a gearbox.

Typical applications of a pulley of this size are in continuous process equipment: mills, mixers, centrifugal fans, high-flow pumps, conveyor belts and compressors. In all those cases the goal is to distribute the load among several grooves so as not to overload a single belt and to keep the drive stable during starting peaks. It is also used in machines where the driven shaft turns at low speed and a transmission ratio with a small drive pulley is required.

To select and mount this pulley, first verify that the 800 mm diameter and the 4 Section B grooves match the belt and the drive pulley of the equipment. Check the shaft diameter and the type of fixing (keyway, taper bushing or press fit) before ordering it, because the hub is machined according to that. Check the alignment between pulleys and the belt tension: a large misaligned pulley generates vibration and uneven wear in the grooves. If the equipment works with variable loads, balancing should be evaluated.

If you need a different size, we can manufacture a pulley with another diameter, another number of grooves or for Section A, C or SPB belts. To request an equivalent or a nearby size, send us the part number POLEA 800 4B or the equipment data: drive and driven pulley diameter, belt section and quantity, shaft diameter and type of fixing. With that we review the machining and give you the alternative that best suits.

MR Accesorios Industriales manufactures this pulley in its workshops and sells it together with the rest of the power transmission line. If you already have the part number at hand, send it via WhatsApp and we'll quote you. If not, tell us what equipment you are repairing and we'll help you identify the corresponding pulley.