Industrial pulley 800 mm, 2 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 800 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 800 2B and any equivalents.
The 800 2B is a V-belt drive pulley made by EMMAR. It measures 800 mm in outside diameter and carries two grooves cut for section B belts, so it transfers power between parallel shafts at a ratio set by the diameters of the pulleys in the drive. Equipment that has to move a lot of air or material off a single motor is where this size shows up: industrial fans, screw compressors, conveyors.
Two machined grooves for section B belts sit in an 800 mm outside diameter. Section B is a classic V-belt profile, so compatible belts are easy to source from any spare parts supplier. Running two grooves instead of one raises the transmission capacity of the pulley at the same pitch diameter. The hub is machined to fit the equipment shaft and can be supplied with keyway and set screw to order.
This diameter is common on high-flow centrifugal fans, screw compressors, mills, mixers and belt conveyors. In most of those drives the pulley either brings motor speed down into the equipment's working range or increases available torque. It also suits belt-driven machines that need a large drive pulley so the belt is not overloaded.
Sizing starts with three inputs: power to be transmitted, RPM of the faster shaft, and the drive ratio you want. Those define the pitch diameter of the drive pulley and the number of grooves. Section B covers only a limited band of pitch diameters, so check that the diameter you pick is not below the minimum recommended for that section. On installation, align the pulleys and tension the belts to the deflection the belt manufacturer specifies.
Other groove counts, diameters and sections can be manufactured. If you are replacing a pulley, send the outside diameter, shaft diameter and belt section, and we can quote an equivalent. A photo of the old pulley helps confirm the match.
To order the 800 2B, message us on WhatsApp with part number MR-POLEA-B2-800 or the designation POLEA 800 2B. You can also ask about the rest of the EMMAR in-house manufacturing line.
Dimensions
- Size
- 800mm
- Grooves
- 2
- Section
- B
Frequently asked questions
- What does section B mean on this pulley?
- Section B is the V-belt profile that fits the grooves. It sets the groove width and depth and therefore which belts are compatible. A section A or C pulley uses different belts and will not interchange.
- Can the hub be machined for a different shaft diameter?
- Yes. The hub is machined to suit the equipment shaft. Tell us the shaft diameter, hub length and whether a keyway is needed, and the pulley is made to those dimensions.
- How do I get a quote for an equivalent pulley?
- Send the outside diameter, number of grooves, belt section and shaft diameter by WhatsApp or email. With that data we identify the pulley and quote an equivalent EMMAR unit.