
Industrial pulley 260 mm, 5 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
EMMAR POLEA 260 5B is a reference of pulleys, within Power transmission. Request a quote for POLEA 260 5B via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The 260 5B pulley is a V-belt drive pulley manufactured by EMMAR Accesorios Industriales. It has a 260 mm diameter and 5 grooves for section B belts. It is used to transmit power between parallel shafts in industrial equipment: fans, compressors, pumps, mills and conveyors. Because it is in-house manufactured, we control the machining of the grooves and the balancing, which results in even operation and less belt wear.
This item is a pulley with a 260 mm diameter, 5 grooves and section B. The POLEA 260 5B designation sums up those three variables: outside diameter, number of grooves and belt profile. Section B corresponds to classic V-belts with a 17 mm top width, although the groove is machined to standard for that profile. The pulley is mounted on the shaft by means of a keyway and set screw or taper bushing, depending on the configuration you request. Manufactured by MR in Argentina, with dimensional inspection of each part.
Typical applications for a 5-groove section B pulley are drives that need to transmit considerable power with several belts in parallel: centrifugal fans, screw compressors, large centrifugal pumps, mills, mixers and belt conveyors. It is also used to replace worn pulleys or to change the transmission ratio by modifying the diameter. With 5 grooves, it allows distributing the load and continuing to operate with one less belt if you need to keep going until the complete set is replaced.
To correctly select this pulley, take into account the pitch diameter, not just the outside diameter, because the tangential speed and the transmission ratio depend on it. Check that the shaft has a compatible diameter and keyway, and that the pulley is aligned with the driven pulley: a misalignment of a few degrees shortens belt life. The tensioner must be adjusted so that the belt deflection is correct. If the equipment runs with vibration, it is advisable to check the static and dynamic balancing of the pulley.
If you need an equivalent pulley, the most practical thing is to send us the complete part number, the number of grooves and the diameter shown on the original part. A photo of the mounted pulley or the shaft data also helps. With that we will indicate the in-house manufactured pulley that replaces the original or machine it to measure. We work with standard sizes and also with special manufacturing to drawing.
To request a quote for this 260 5B pulley or inquire about a variant, write to us on WhatsApp and send us the part number MR-POLEA-B5-260. We will reply with the alternatives if you need another diameter or number of grooves. MR Accesorios Industriales, since 1945, manufactures pulleys, split plummer block housings and ANSI chains in the country.
Dimensions
- Size
- 260mm
- Grooves
- 5
- Section
- B
Frequently Asked Questions
- What does 5B mean in the pulley designation?
- The 5 indicates the number of grooves for belts, and the B corresponds to the V-belt section. In this case, the pulley has 5 grooves for section B belts, which is a classic profile with a 17 mm top width.
- Can I use this pulley with fewer belts?
- Yes, it can be mounted with fewer belts than grooves, but the transmitted power is proportionally reduced. Ideally, complete all 5 grooves to distribute the load and prevent the remaining belts from working under strain. Ask us about the complete set.
- How do I request a pulley with another diameter or number of grooves?
- Send us by WhatsApp the outside or pitch diameter you need, the number of grooves and the belt section. With that data we will quote an in-house manufactured pulley with the exact size.

