Norton 66243529187 Type 11 Grinding Wheel 60 Grit

Product Description

The NORTON 66243529187 is a Type 11 vitrified aluminum oxide grinding wheel designed for tool grinding and precision surface work. Built to a 60-grit medium grade with a K hardness rating, it delivers consistent stock removal on steel and ferrous materials. The wheel carries a 7,640 maximum RPM rating and a vitrified bond that maintains form under repeated use. At 3 inches in diameter with a 1/4-inch face width and a 3/4-inch arbor hole, it fits standard bench and pedestal grinders used in tool rooms, maintenance shops, and industrial grinding applications. Licensed machinists, tool grinders, and maintenance technicians are the primary installers and operators.

This wheel is suited for bench grinder and pedestal grinder setups in tool rooms, maintenance facilities, and light manufacturing environments. The Type 11 cup profile provides clearance for tool grinding tasks where a flat wheel would interfere with the workpiece. The 3-inch diameter and 2-1/4-inch hub diameter make it appropriate for smaller precision grinders used to dress tooling, sharpen cutting tools, and recondition worn edges on HSS and carbide-tipped bits. It is intended for dry grinding operations typical of the tool and die trade.

Key Features

• Type 11 cup wheel profile for tool grinding clearance
• 60-grit medium grade aluminum oxide abrasive for consistent stock removal
• Vitrified bond provides dimensional stability and form retention
• 7,640 maximum RPM rating for safe operation on compatible machines
• Non-porous gray wheel with K hardness code for controlled cut rate
• 3/4-inch arbor hole fits standard bench and pedestal grinder spindles

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for bench grinders and pedestal grinders accepting a Type 11 cup wheel with a 3-inch diameter and 3/4-inch arbor hole.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or maintenance technician familiar with ANSI B11.9 bench grinder safety standards. 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. Ensure the machine spindle speed does not exceed the 7,640 maximum RPM stamped on the wheel.