Industrial pulley 800 mm, 4 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 800 4B 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 800 4B and any equivalents.
The EMMAR 800 4B is a V-belt drive pulley measuring 800 mm in diameter with four grooves cut for Section B belts. It is built for large shafts in milling, ventilation, pumping and conveying systems where multiple belts share the load. This pulley is manufactured in-house by MR, so the machining and balancing can be tailored to your specific application.
The part number POLEA 800 4B encodes three key dimensions: 800 for the outside diameter in millimeters, 4 for the number of grooves, and B for the V-belt profile. Each groove is machined to accept a Section B belt, letting four belts run side by side on the same hub. The pulley mounts on a shaft and takes torque from a motor or gearbox, making it a core component of any belt drive.
You will find this size in continuous-duty equipment such as mills, mixers, centrifugal fans, high-flow pumps, conveyors and compressors. Spreading the load across four grooves keeps any single belt from being overloaded and helps the drive stay stable during start-up peaks. It also suits machines where the driven shaft turns slowly and a small drive pulley is needed to achieve the ratio.
Before ordering, confirm that the 800 mm diameter and the four Section B grooves match your belts and the drive pulley on the equipment. Check the shaft diameter and the fixing method—keyway, taper bushing or press fit—because the hub is machined to suit that. Once installed, verify alignment between pulleys and belt tension; a large pulley that is out of line will vibrate and wear the grooves unevenly. If the load varies, consider balancing.
Need a different size? We can produce a pulley with another diameter, a different number of grooves, or for Section A, C or SPB belts. To request an equivalent, send the part number POLEA 800 4B or the equipment data: drive and driven pulley diameters, belt section and quantity, shaft diameter and fixing type. Our team will review the machining and recommend the best alternative.
MR manufactures this pulley in its own workshops and offers it as part of its power transmission line. If you already have the part number, send it via WhatsApp or email and we will quote you promptly. If not, tell us what equipment you are repairing and we will help you identify the right pulley.
Dimensions
- Size
- 800mm
- Grooves
- 4
- Section
- B
Frequently asked questions
- What does the code POLEA 800 4B stand for?
- The 800 is the pulley diameter in millimeters, the 4 is the number of grooves, and the B indicates the V-belt section. This is MR's internal nomenclature for clear identification.
- Can I order this pulley with a different diameter or groove count?
- Yes. Because it is manufactured in-house, we can machine pulleys with other sizes, groove numbers or belt sections. Send us your equipment details and we will quote the variant you need.
- How can I confirm this pulley will replace the one currently installed?
- Check the outside diameter, the number of grooves and the belt section. Also verify the shaft diameter and fixing type. If you are unsure, send a photo or the part number via WhatsApp and we will verify it for you.