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Double pulley in profile view, two V-grooves cut in the rim and through central bore · EMMAR POLEA 450 2B
Industrial pulley 450 mm, 2 grooves, section B

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Industrial pulley 450 mm, 2 grooves, section B

Manufacturer Part Number
POLEA 450 2B
Brand
EMMARIn-house manufacturing
Category
Power transmission
Subcategory
Pulleys
Series
Sección B

EMMARIn-house manufacturing

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Description

EMMAR POLEA 450 2B is a pulleys reference, within Power transmission. Request a quote for POLEA 450 2B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 450 2B pulley is a V-belt drive pulley, section B, with a 450 mm diameter and two grooves. It is used to drive shafts in industrial equipment where torque must be transmitted with a defined transmission ratio. It is in-house manufacturing, EMMAR brand, so the bore and keyway machining can be adjusted according to the shaft where it is mounted. It is installed in pumps, fans, compressors and conveyors.

This item is a pulley with a 450 mm diameter, 2 grooves and section B. The designation POLEA 450 2B summarizes those three variables: size, number of grooves and belt section. Section B corresponds to classic B-profile V-belts, widely used in medium-power industrial drives. Being in-house manufacturing, EMMAR brand, the bore and keyway machining is defined according to the destination shaft; it does not come closed from the factory.

It is used in belt drives of equipment such as centrifugal pumps, fans, screw compressors, conveyors and mixers. Also in machine tools and process lines where revolutions need to be reduced or increased between a motor and a driven shaft. With two grooves, a drive with two belts in parallel can be built, which distributes the load and gives some redundancy if one belt fails.

To select it, start from the power to be transmitted, the motor RPM and the driven shaft RPM: from there comes the diameter you need. Verify that the 450 mm diameter is compatible with the available space and with the belt length. Check the alignment between pulleys and belt tension: angular or parallel misalignment accelerates wear on the groove and the belt. The pulley is mounted on the shaft with a key and fixed axially.

If you need a nearby size, another diameter, a different number of grooves or a section A or C, it can be manufactured. To request an equivalent, send the complete part number, the outer diameter, the number of grooves, the section and the bore diameter with its keyway. With that data the machining is defined. If you have an old pulley, send a photo with a ruler next to it and the measurements taken with a caliper.

To request a quote for this pulley or a variant, send the part number POLEA 450 2B via WhatsApp to MR Accesorios Industriales. If the shaft has a particular bore or keyway, specify it in the same message. You can also ask about the set of section B belts compatible with two grooves.

Dimensions

Size
450mm
Grooves
2
Section
B

Frequently Asked Questions

What does 450 2B mean in the designation?
450 is the pulley diameter in millimeters, 2 is the number of grooves and B is the V-belt section. It is the usual way of naming pulleys in the trade: size, grooves and section.
Can I request it with another bore diameter?
Yes. Since it is in-house manufacturing, EMMAR brand, the bore and keyway are machined according to the shaft. Send the shaft diameter and the keyway measurements at the time of requesting a quote.
How do I know if I need section B or C?
It depends on the power and RPM. Section B covers medium power; C is used for higher power. If you are not sure, send the motor and driven shaft data and we will guide you.
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