Industrial pulley 260 mm, 4 grooves, section A
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- A
- Series
- Sección A
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Description
EMMAR POLEA 260 4A belongs to pulleys, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for POLEA 260 4A and any equivalents.
This EMMAR-made pulley carries the designation 260 4A. It is a section A V-belt sheave with a 260 mm diameter and four grooves, used to link parallel shafts in industrial drives where speed must be stepped up or down. Because MR produces it in its own shop, the groove machining and balancing are kept under control, which matters for belt life and vibration.
The 260 4A is a four-groove pulley in section A, with a 260 mm diameter. Section A is a classic narrow V-belt profile, and four grooves mean four belts can run side by side on the same hub. The diameter sets the ratio when paired with the pulley on the opposite shaft. It is an EMMAR product, made in-house, and serves either as a replacement for a worn sheave or as a component in a new drive build.
You will find this type of pulley on compressors, fans, centrifugal pumps, mixers, conveyors and general plant machinery. It also shows up on field equipment that takes motion from a power take-off. In these setups the belt acts as a safeguard: if the driven side jams, the belt slips before the shaft or gearbox is damaged.
When selecting, confirm that the belts are section A and count the grooves the drive requires. Work from the pitch diameter rather than the outside diameter, since the ratio comes from the pitch line. The hub bore, keyway and mounting method must fit the shaft. During installation, align the pulleys with a straightedge or laser and set belt tension following the belt maker's instructions.
If you need a different diameter or a different groove count, it can be ordered. Provide the complete part number, the belt section, the pitch diameter you want, and a photo or sketch of the hub showing bore and keyway dimensions. That information lets us locate an equivalent or have it made to your measurements. Having the old pulley on hand also helps, because hub dimensions are the most common source of fit problems.
To request a quote for this 260 4A pulley or another item from the power transmission line, message us on WhatsApp with the part number and quantity. MR Industrial Accessories LLC manufactures its own pulleys, split plummer block housings and ANSI chains, so a special pulley can also be handled when the application requires it.
Dimensions
- Size
- 260mm
- Grooves
- 4
- Section
- A
Frequently asked questions
- What does section A mean on this pulley?
- Section A is a classic V-belt profile common in light and medium industrial drives. The grooves are machined to that angle so the belt seats properly and does not slip. It is not interchangeable with section B, SPZ or timing belts.
- Can I use a 3-groove pulley instead of this 4-groove one?
- It is possible, but the power the drive can transmit drops because one belt is missing. If the equipment originally had four grooves, it likely needs all four for the load. Check the motor power and the duty before reducing the groove count.
- How do I order a pulley with a different diameter or bore?
- Send the pitch diameter you need, the belt section, the number of grooves, and the hub bore dimensions with keyway via WhatsApp. With those details we can determine whether an equivalent pulley exists in the line or whether it is better to manufacture it to your specifications.