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Industrial pulley 90 mm, 4 grooves, section C
- Manufacturer Part Number
- POLEA 90 4C
- Brand
- EMMARIn-house manufacturing
- Category
- Power transmission
- Subcategory
- Pulleys
- Series
- Sección C
In-house manufacturing
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Description
EMMAR POLEA 90 4C is a pulleys reference, within Power transmission. Request a quote for POLEA 90 4C via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The 90 4C pulley is a V-belt drive pulley with section C, four grooves and 90 mm diameter. It is used to transmit power between parallel shafts in industrial equipment, where a defined transmission ratio and good traction capacity are needed. As it is in-house manufactured, EMMAR brand, machining and balancing are controlled so the belt seats properly and the assembly runs evenly.
This item is a pulley with 90 mm diameter, 4 grooves and section C. The designation POLEA 90 4C summarizes those three variables: the outside diameter, the number of grooves and the belt profile it accepts. Section C corresponds to wide-profile V-belts, typical of drives with medium to high power requirements. The four grooves allow the load to be distributed among several belts, which reduces the stress on each one and improves drive continuity.
It is used in machines and equipment that need to transmit motion between a motor and a driven shaft: compressors, pumps, fans, conveyor belts, mixers and mills, among others. It also appears in gearboxes and drive systems where a stable speed ratio is required. With four grooves, it is common in applications where you do not want to depend on a single belt and some mechanical redundancy is sought.
To install it, check that the shaft and keyway are clean and free of burrs, and that the pulley fits correctly, without blows that could deform the groove. Alignment between pulleys is key: angular or parallel misalignment wears the belt and the grooves unevenly. Belt tension is adjusted according to the equipment manual or the belt manufacturer's tables. If you are replacing an existing pulley, compare the diameter, the number of grooves and the section before mounting.
If you need a pulley with a different number of grooves, another diameter or a different section, a nearby size or an equivalent can be evaluated. For that, the most practical thing is for you to send the part number POLEA 90 4C or that of the original pulley, along with a photo or sketch showing the diameter, the grooves and the belt type. With that data, the closest option within the in-house manufacturing line can be found.
At MR Accesorios Industriales we manufacture pulleys and other power transmission components. If you want a quote for this pulley or to ask about a variant, send the part number by WhatsApp and we will reply with the available technical information. We can also advise you on selection if you tell us what equipment you are repairing or assembling.
Dimensions
- Size
- 90mm
- Grooves
- 4
- Section
- C
Frequently Asked Questions
- What does it mean that it is section C?
- Section C indicates the V-belt profile that the pulley accepts. It is a wider belt profile than sections A or B, designed to transmit more power per groove. That is why it is used in more demanding equipment.
- Can I replace a 3-groove pulley with this 4-groove one?
- In general it is not a direct replacement: the number of belts changes and the diameter and total width may vary. It is advisable to consult the equipment manufacturer or us before replacing, so as not to modify the drive.
- How do I request a pulley with another size?
- Send by WhatsApp the part number of the current pulley or the data of diameter, number of grooves and section. With that information, a nearby size or an equivalent is sought within the in-house manufacturing line, EMMAR brand.

