Norton 69014191721 Cbn Grinding Wheel 150 Grit Type 11V9

Product Description

The NORTON 69014191721 is a Type 11V9 cubic boron nitride (CBN) superabrasive grinding wheel designed for precision tool grinding applications. The wheel measures 3.75 inches in diameter with an overall thickness of 1.5 inches and a 1.25-inch bore. It carries a 150-grit, Very Fine CBN abrasive layer bonded with a resinoid bond system to a 0.0625-inch superabrasive depth. CBN abrasive is the appropriate choice for grinding hardened ferrous tool steels, HSS, and similar high-hardness materials where conventional aluminum oxide wheels wear too quickly. This wheel is handled by toolroom machinists, tool and cutter grind technicians, and precision grinding specialists.

This wheel is suited for bench or pedestal tool and cutter grinders as well as CNC grinding machines that accept a Type 11V9 cup wheel configuration. The 70-degree face angle and 0.375-inch face width make it appropriate for relief grinding, flute grinding, and form grinding of cutting tools including end mills, drills, reamers, and taps. It supports both wet and dry operation, though wet grinding is recommended for heat-sensitive workpieces and to extend wheel life. The 100 concentration rating indicates a fully loaded CBN layer for consistent stock removal throughout the wheel life.

Key Features

• Cubic Boron Nitride (CBN) abrasive at 100 concentration for consistent, long-lasting stock removal on hardened ferrous steels
• 150 grit Very Fine grade delivers a smooth surface finish suitable for finishing passes on precision cutting tools
• Type 11V9 form factor with 70-degree face angle and 0.375-inch face width for relief and flute grinding
• Resinoid bond system provides controlled abrasive release and good finish quality across wet and dry operations
• 0.0625-inch superabrasive depth with 2.664-inch hub diameter for stable seating on standard arbors
• Specification grade CB150-WB99-1/16 for cross-reference and replacement ordering

Compatibility

Designed for use on tool and cutter grinders and precision surface grinders that accept a Type 11V9 cup wheel with a 1.25-inch bore and up to 3.75-inch diameter. Consult your machine manufacturer specifications to confirm maximum operating speed and arbor fit before mounting.

Installation Notes

CBN grinding wheels must be mounted and dressed only by qualified toolroom or grinding personnel familiar with superabrasive wheel handling procedures. Always power down and lock out the grinder before mounting or removing the wheel. Use the correct flanges and ensure the bore seats cleanly on the arbor without forcing; never exceed the maximum RPM marked on the wheel or spindle nameplate. Wheel inspection per ANSI B7.1 standards is recommended prior to each use to check for cracks, chips, or damage.