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Industrial pulley 320 mm, 1 groove, section B
- Manufacturer Part Number
- POLEA 320 1B
- 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 320 1B is a pulleys reference, within Power transmission. Request a quote for POLEA 320 1B via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The industrial pulley with a 320 mm diameter, 1 groove and section B is a power transmission component that is mounted on shafts to transmit motion through V-belts. It is used in machines and equipment where the rotation speed needs to be reduced or increased. MR Accesorios Industriales manufactures it locally, with dimensional control and balancing, so that it fits your system without surprises.
This item is a pulley with a 320 mm diameter, 1 groove and section B. The designation POLEA 320 1B summarizes those three variables: size, number of grooves and belt profile. Section B corresponds to type B V-belts, which are used in medium-power drives. Because it has a single groove, it is designed for a single belt, which simplifies mounting and alignment on shafts where there is no need to multiply the transmitted power.
It is used in industrial fans, compressors, centrifugal pumps, conveyor belts and machine tools. It also appears in process equipment, mixers and extraction systems. In all cases, the pulley is part of a drive assembly that includes a shaft, a hub and a belt. The choice of section B responds to the working power and speed: it is an intermediate section that covers a wide range of applications without requiring large-diameter pulleys.
To mount it, check that the shaft diameter matches the hub bore and that the key fits without play. The alignment between driving and driven pulleys should be as perfect as possible: a misalignment of a few degrees accelerates wear on the belt and on the equipment bearings. Belt tension is adjusted according to the machine manufacturer's manual; neither loose nor excessively tight. If the pulley runs at high speeds, it is advisable to check the balancing before putting it into service.
If you need a different size or a pulley with more grooves, we can manufacture it. To do so, send us the outside diameter, the number of grooves, the belt section and the bore diameter with its keyway. We can also quote a pulley equivalent to the one you are replacing if you send us the part number or the main measurements. The idea is that you don't have to adapt anything: the new pulley goes where the old one was.
MR Accesorios Industriales manufactures this pulley in its workshops, with verified materials and tolerances. If you want to move forward, send the part number POLEA 320 1B by WhatsApp and we will send you the quote. You can also ask us about other pulleys in the power transmission line. We are here to advise you on selection and mounting.
Dimensions
- Size
- 320mm
- Grooves
- 1
- Section
- B
Frequently Asked Questions
- What does it mean that it is section B?
- Section B defines the profile of the V-belt that fits into the groove. It is a commonly used section in medium-power drives. It is not compatible with belts of other sections, such as A or C, because the width and depth of the groove change.
- Can I order it with a different bore diameter?
- Yes. The pulley is manufactured with the bore you need, as long as you indicate the shaft diameter and the keyway. Send us that data by WhatsApp and we will quote the pulley with the exact size for your equipment.
- How do I know if this pulley replaces the one I have installed?
- Compare the outside diameter, the number of grooves and the belt section. If they match, it is the same pulley. If you have doubts, send us the old part number or the measurements and we will confirm the equivalence before quoting.

