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Industrial pulley 420 mm, 5 grooves, section B
- Manufacturer Part Number
- POLEA 420 5B
- Brand
- EMMARIn-house manufacturing
- Category
- Power transmission
- Subcategory
- Pulleys
- Series
- Sección B
In-house manufacturing
We respond promptly.
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Description
EMMAR POLEA 420 5B is a pulleys reference, within Power transmission. Request a quote for POLEA 420 5B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The 420 5B pulley is a V-belt drive pulley, section B, with a 420 mm diameter and 5 grooves. It is used to drive parallel shafts in equipment that requires several belts working together, such as fans, compressors, pumps and conveyors. Because it is in-house manufactured, EMMAR brand, you can inquire about machining and balancing variants according to the application.
This item is a pulley with a 420 mm diameter, 5 grooves and section B. Section B corresponds to classic V-belts with a B profile, and the 5 grooves allow five belts to be mounted in parallel on the same pulley. The 420 mm diameter defines the transmission ratio when combined with another pulley in the same system. The designation 420 5B summarizes those three data points: diameter, number of grooves and section.
It is used in drives where power needs to be transmitted with several belts to distribute the load. It appears in industrial fans, screw compressors, centrifugal pumps, screens, mixers and conveyors. Also in agricultural machinery and process equipment that already comes prepared for section B belts. It is a general-purpose pulley for maintenance and replacement of existing transmission lines.
To select it, check that the belt section is B and that the number of grooves matches the number of belts on the equipment. The 420 mm diameter must be compatible with the desired transmission ratio and with the available space. Check the condition of the keyway, the fit on the shaft and the alignment between pulleys before mounting. Misalignment or a worn keyway shortens belt life.
If you need an equivalent pulley or a nearby size, send us the part number 420 5B or the complete designation of the equipment. We can evaluate variants in the number of grooves, diameter or type of bushing or bore, as long as the application allows it. The more data you give us — shaft diameter, mounting type, belt you use — the more accurate the proposal.
MR Accesorios Industriales manufactures this pulley and sells it together with belts, bushings and supports for power transmission. If you want to request a quote or inquire about a different size, send the part number 420 5B by WhatsApp and we will reply with the alternative that best fits your machine.
Dimensions
- Size
- 420mm
- Grooves
- 5
- Section
- B
Frequently Asked Questions
- What does 420 5B mean on a pulley?
- The 420 indicates the pulley diameter in millimeters, the 5 the number of grooves and the B the V-belt section. It is a shorthand way of naming the three main variables of a pulley for section B belts.
- Can I use this pulley with belts of another section?
- It is not recommended. The grooves are machined for the B profile. A belt of another section may not seat properly, may slip or may wear out prematurely. If you need another section, ask us about an equivalent pulley.
- How do I request a pulley with a different number of grooves or diameter?
- Send the part number 420 5B by WhatsApp and tell us what diameter, number of grooves or type of bore you need. With that data we evaluate whether a variant can be manufactured or whether a pulley of another size is better.