Norton 66252830788 Type 11 Grinding Wheel 60 Grit 5 in

Product Description

The NORTON 66252830788 is a Type 11 flaring cup grinding wheel built for tool grinding and precision surface work. It is made from aluminum oxide abrasive bonded with a vitrified bond, delivering consistent stock removal and a medium cut rate. The wheel measures 5 inches in diameter with a 1.75-inch overall thickness and a 0.25-inch face width. Rated at a maximum of 4,585 RPM, it is suited for use on bench grinders and pedestal grinders in professional shop environments. Specification code 32AA60-KVTR identifies the abrasive grade, hardness, and bond structure for precise selection.

This wheel is designed for tool and cutter grinding applications in machine shops, maintenance facilities, and fabrication environments. The 60-grit, K-hardness combination targets medium material removal on high-speed steel and similar tool steels. The 1.25-inch hole size fits standard spindle arbors common to bench and pedestal grinding machines. Licensed grinding shops and industrial maintenance technicians are the primary installers of this wheel type.

Key Features

• Type 11 flaring cup wheel geometry for tool and cutter grinding
• Aluminum oxide abrasive with vitrified bond for controlled, consistent cut
• 60 grit, K hardness (medium) for balanced material removal and wheel life
• Maximum rated speed of 4,585 RPM
• Non-porous gray wheel construction; specification code 32AA60-KVTR
• 1.25-inch bore fits standard bench and pedestal grinder arbors

Compatibility

Designed as an OEM-style replacement or service wheel for bench grinders and pedestal grinders accepting a 5-inch diameter, 1.25-inch bore, Type 11 cup wheel. Verify spindle speed does not exceed 4,585 RPM before mounting.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machine operator or maintenance technician following ANSI B7.1 safety standards. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips before mounting and conduct a ring test per ANSI guidelines. Never exceed the maximum RPM marked on the wheel.