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Gray cylindrical convolute wheel with central hole, fine non-woven abrasive surface

3M

3M 14791 Convolute Wheel power

SKU CH-907D-615ZA MPN 14791

Convolute wheel for deburring with silicon carbide abrasive, 8 in diameter and 4,500 RPM maximum speed

  • TypeSanders
  • Silicon carbide abrasive cuts cleanly on deburring tasks
  • Fine grade delivers smooth finishes without gouging
  • Hard density rating 8 resists wear under load
  • XL-WL series construction extends wheel life
  • 500 RPM max speed matches bench grinder limits

Product identity

The 3M 14791 is a silicon carbide convolute wheel designed for deburring and finishing tasks. It suits metalworkers and maintenance technicians who need consistent surface preparation without heavy material removal. The non-woven construction resists loading during extended use. It fits bench or pedestal grinders with a three-inch arbor.

Thermals noise and power

The wheel runs at a maximum operating speed of 500 RPM, which limits heat buildup on the workpiece. Non-woven abrasive structure dissipates friction heat more effectively than bonded alternatives. Operational noise depends on the host grinder and workpiece material rather than the wheel itself. Power draw is determined entirely by the driving motor and applied pressure.

Build quality and mounting

The eight-inch diameter wheel features a three-eighths inch face width and a hard density rating of eight. Its three-inch centre hole mounts directly on standard arbors without adapters. Gray colour coding identifies the fine grade within the XL-WL series. Open coating coverage reduces clogging when processing soft metals or composites.

Highlights

  • Silicon carbide abrasive cuts cleanly on deburring tasks
  • Fine grade delivers smooth finishes without gouging
  • Hard density rating 8 resists wear under load
  • XL-WL series construction extends wheel life
  • 500 RPM max speed matches bench grinder limits

Specifications

TypeSanders
Brand3M
Model14791

Questions about this item

How do I mount the 3M 14791 convolute wheel on my sander, and what step do people often miss?

Slide the wheel onto the spindle using the 3 in connector size, then tighten the flange nuts securely. The step many miss is confirming the wheel sits flush against both flanges before running the tool.

What part of the 14791 will wear out first and need replacement?

The silicon-carbide non-woven abrasive face wears down with use. When the fine-grade cutting action drops noticeably or the wheel profile becomes uneven, replace the entire wheel.

What limit appears first when running the 14791 continuously at high load?

The 4,500 RPM maximum operating speed is the primary limit. Exceeding it risks wheel disintegration, so the tool’s governor or speed setting must keep the spindle at or below that figure.

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