Norton 66252830859 Type 11 Grinding Wheel 46 Grit

Product Description

The NORTON 66252830859 is a Type 11 vitrified aluminum oxide grinding wheel designed for precision tool grinding and offhand grinding operations. Built to a 46-grit medium-coarse specification with a K hardness code, this wheel delivers consistent stock removal on a wide range of ferrous and tool-steel workpieces. It measures 5 inches in diameter with a 1-3/4-inch overall thickness and a 1/4-inch face width, making it well-suited for surface contact work on bench and pedestal grinders. Maximum rated speed is 4,585 RPM. Installed and dressed by machinists, toolroom technicians, and grinding specialists.

This wheel is intended for bench grinder and pedestal grinder applications in toolroom, maintenance, and light manufacturing environments. The Type 11 flared-cup profile provides a wide working face for flat and contoured tool-face grinding. The 1-1/4-inch arbor hole fits standard bench and pedestal grinder spindles common in production and maintenance shops. The gray vitrified bond offers a self-dressing action that keeps the cutting face open during use, maintaining consistent cut rate across the wheel life.

Key Features

• Type 11 flared-cup wheel profile for flat and contoured tool-face grinding
• 46-grit aluminum oxide abrasive for medium-coarse stock removal
• Vitrified bond provides self-dressing action and consistent cut rate
• K hardness code suited for medium-hardness workpiece materials
• 5-inch diameter with 1/4-inch face width for precise grinding contact
• 4,585 RPM maximum rated speed for standard bench and pedestal grinder use

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for bench and pedestal grinders accepting a 1-1/4-inch arbor hole and Type 11 cup wheel geometry.

Installation Notes

Grinding wheels must be installed by a qualified operator following ANSI B7.1 safety requirements. 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 per standard practice. Never exceed the maximum rated RPM of 4,585 printed on the wheel blotter.