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Industrial pulley 420 mm, 6 grooves, section B
- Manufacturer Part Number
- POLEA 420 6B
- Brand
- EMMARIn-house manufacturing
- Category
- Power transmission
- Subcategory
- Pulleys
- Series
- Sección B
In-house manufacturing
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame you need.
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Description
EMMAR POLEA 420 6B is a pulleys reference, within Power transmission. Request a quote for POLEA 420 6B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The 420 6B pulley is a power transmission pulley manufactured by EMMAR, with 420 mm diameter and 6 grooves for section B belts. It is used to transmit motion between parallel shafts in industrial equipment, where the load needs to be distributed among several grooves and a stable rotation speed maintained. Being of in-house manufacturing, variants of machining and balancing can be requested according to the application.
This item is a pulley of 420 mm diameter, with 6 grooves and section B. The designation POLEA 420 6B summarizes those three characteristics: the outside diameter, the number of grooves and the belt profile it accepts. Section B corresponds to a classic industrial transmission belt profile, and the 6 grooves allow distributing power among several belts in parallel. The machining of the bore, the keyway and the balancing are defined according to the shaft and the working revolutions.
It is used in fans, centrifugal pumps, compressors, mills, conveyor belts and continuous process machines. It is common in installations where the motor and the driven equipment are separated and a speed reduction or multiplication by diameter ratio is needed. It also appears in refrigeration equipment, plant exhausters and production lines that run many hours a day, where belt transmission remains a simple solution with predictable maintenance.
To select it, take into account the power to transmit, the rpm of the faster shaft, the pitch diameter and the number of grooves needed so as not to overload each belt. Verify the shaft diameter, the keyway length and the type of fastening. During assembly, align the pulleys with a straightedge or laser, tension the belts according to the manufacturer's manual and check the parallelism of the shafts. Misalignment, even slight, shortens the life of the belts and of the equipment bearings.
If you need a nearby size, a different number of grooves or a pulley for a different section, send us the part number POLEA 420 6B via WhatsApp along with the equipment data: shaft diameter, rpm, power and center distance. With that we review the alternative within the in-house manufacturing line, EMMAR brand and send you the quote. We can also evaluate special machining on the same base.
MR Accesorios Industriales manufactures this pulley and integrates it into its power transmission line, along with housings, chains and bearings. If you already have the item part number, send it via WhatsApp and we will reply with the quote. If you don't have it at hand, describe the pulley by diameter, grooves and section, and we will locate it anyway.
Dimensions
- Size
- 420mm
- Grooves
- 6
- Section
- B
Frequently Asked Questions
- What does POLEA 420 6B mean?
- It indicates a pulley of 420 mm diameter, with 6 grooves and section B. It is the way to identify the item within MR's power transmission line and allows requesting it or comparing it with another similar one without ambiguity.
- What type of belt does it use?
- It uses section B belts, which is a classic industrial transmission profile. The number of grooves determines how many belts can be mounted in parallel to distribute the power. Confirm the belt length according to the center distance of your equipment.
- How do I request a pulley with another size or number of grooves?
- Send via WhatsApp the part number POLEA 420 6B and the equipment data: shaft diameter, rpm, power and available space. With that we evaluate an in-house manufacturing variant or a nearby size and send you the quote.

