Industrial pulley 650 mm, 2 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 650 2B 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 650 2B and any equivalents.
The EMMAR 650 2B is a two-groove V-belt pulley in section B with a 650 mm diameter, built in-house by MR. Drives that run at low speed and carry high torque are where this size of sheave tends to appear, linking parallel shafts so the transmission ratio holds and the driven equipment keeps performing as intended.
Reading the code is straightforward once you know the pattern: POLEA 650 2B gives the diameter first, then the groove count, then the belt profile. Two section B grooves mean two belts can run side by side and share the pull. At 650 mm across, this falls into the large-diameter range, the kind of sheave you find on slow-turning, torque-heavy shafts.
Typical installations include mills, mixers, conveyor drives, high-flow pumps and industrial fans, as well as agricultural and process equipment where an electric or combustion engine has to be stepped down. In each of those cases, one two-groove section B pulley at this diameter keeps the drive running with minimal adjustment work.
Mounting calls for a few checks before the belts go on. Confirm the bore matches the shaft, seat the key without play, and line the pulleys up with a straightedge or laser so the belts wear evenly. Set tension per the equipment manual: too tight and the bearings take the strain, too loose and the belts slip. A pulley turning at high speed should be balanced.
If the drive needs something different, EMMAR manufacturing can produce a pulley at another diameter, with a different groove count, or for another belt section. Bore size, keyway and material can also be changed. Send the part number POLEA 650 2B, or the full designation from the equipment, by WhatsApp or email and the team will reply with a quote for the options.
MR supplies bearings, mounted units and housings, power transmission components, seals, lubrication and maintenance tools to customers across the United States and in several Latin American countries, and manufactures split plummer block housings, roller chains and sheaves in-house. The team can also point you to an equivalent or help match a replacement pulley to a new motor.
Dimensions
- Size
- 650mm
- Grooves
- 2
- Section
- B
Frequently asked questions
- What does the code POLEA 650 2B tell me?
- It identifies a pulley with a 650 mm diameter, 2 grooves and section B. That is MR's internal nomenclature for the main dimensions. If anything is unclear, send the part number by WhatsApp and the team will confirm the details.
- Can I get a pulley with a different diameter or more grooves?
- Yes. Since EMMAR manufacturing produces these in-house, pulleys can be made at other dimensions, groove counts or belt sections. Send the current part number and the dimensions you need by WhatsApp or email for a quote on the variant.
- How should a 650 mm pulley be mounted?
- Mount it on the shaft with a key, checking that the bore matches and that it is aligned with the mating pulley. Set belt tension according to the equipment. If it rotates fast, it should be balanced. Ask the team if you have any doubts.