
Industrial pulley 210 mm, 4 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 210 4B is a reference of pulleys, within Power transmission. Request a quote for POLEA 210 4B via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The 210 4B pulley is a V-belt drive pulley with section B, 210 mm diameter and four grooves. It is used to drive shafts from a motor, distributing power among several belts to transmit more torque without slipping. It is an in-house manufactured part, EMMAR Accesorios Industriales brand, designed for equipment that runs several hours a day and needs a balanced pulley, with machined grooves and good belt grip.
This pulley has a 210 mm outside diameter, 4 grooves and section B. The grooves are machined so that the B V-belt seats evenly and does not come out. Being four-groove, it allows the load to be distributed among four belts, which reduces wear on each one and improves transmission when the equipment starts under load. The mass and diameter are designed so that the pulley rotates without annoying vibrations within its working range.
It is used in screw compressors, industrial fans, mills, mixers, conveyor belts and production machines in general. It is also common in pumping equipment and in drives where revolutions need to be reduced or increased between the motor and the driven shaft. Having four grooves, it is a common option when you want to transmit more power without increasing the pulley diameter or changing the belt section.
To mount it, verify that the shaft and keyway are clean and free of burrs, and that the pulley goes on without blows. Align the drive and driven pulleys with a straightedge or a laser; a misalignment of a few degrees wears out the grooves and belts. Tension the belts according to the equipment manual and check the tensioner after the first hours of operation. If the pulley is mounted with a taper bushing, tighten the screws in a cross pattern and with the proper wrench.
If you need a pulley with a different number of grooves, another diameter or a different section, it can be custom manufactured. To request an equivalent, send us the original pulley part number, the number of grooves, the belt section and the outside diameter. A photo of the mounted pulley and the shaft measurement also helps. With that data we indicate the similar pulley or manufacture it.
MR Accesorios Industriales manufactures this pulley in the country, with dimensional control and balancing. If you want to request a quote for the 210 4B pulley, send the part number via WhatsApp and we will reply with the technical information you need for your equipment.
Dimensions
- Size
- 210mm
- Grooves
- 4
- Section
- B
Frequently Asked Questions
- What does it mean that it is section B?
- Section B is the V-belt profile that fits into the pulley grooves. It is not the same as a section A or C pulley: each uses a belt of different width and height. For this pulley, the belt must be section B.
- Can I replace a 3-groove pulley with this 4-groove one?
- Yes, as long as the diameter and shaft match and the belt is section B. Having one more groove, you will need an additional belt and verify that the center distance allows mounting. Consult us with your equipment data.
- How do I order a pulley with another size?
- Send via WhatsApp the outside diameter, the number of grooves, the belt section and the shaft diameter. With that data we quote a custom pulley or offer you the standard size.

