Norton 66252830964 Type 11 Grinding Wheel 5 in 60 Grit

Product Description

The NORTON 66252830964 is a Type 11 flaring cup grinding wheel designed for tool grinding and precision material removal on hard metals and toolroom applications. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent stock removal and controlled surface finish. It measures 5 inches in diameter with a 1-3/4 inch overall thickness and runs at a maximum of 4,585 RPM. The K hardness code and medium grade make it well suited for moderate material removal without excessive breakdown. Licensed grinding machine operators and tool-and-die technicians are the primary installers and users of this wheel.

This wheel is used in bench grinder and pedestal grinder applications common to tool rooms, maintenance shops, and manufacturing environments. The Type 11 flaring cup profile is typically used for grinding the faces and clearance angles of cutting tools such as end mills, drill bits, and form cutters. The 1/4 inch face width and 3-3/4 inch hub diameter are standard for this wheel geometry. It is appropriate for dry grinding operations on ferrous metals and high-speed steel tooling where aluminum oxide abrasive performs reliably.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent cutting action
• Type 11 flaring cup profile designed for face grinding of cutting tools
• 60 grit, K hardness (medium grade) balances stock removal and wheel life
• Maximum operating speed of 4,585 RPM — do not exceed this rating
• 1-1/4 inch hole size for standard grinding machine arbor fitment
• Non-porous wheel construction for stable, predictable performance

Compatibility

Designed for use on bench and pedestal grinding machines that accept a Type 11 flaring cup wheel with a 1-1/4 inch arbor hole and a maximum spindle speed at or below 4,585 RPM.

Installation Notes

Grinding wheel mounting and dressing must be performed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation and perform a ring test; never mount a damaged wheel. Do not exceed the maximum RPM marked on the wheel, and always use the appropriate wheel guards as required by OSHA standards.