Norton 69078666749 Grinding Wheel 20 in 60 Grit Aluminum Oxide

Product Description

The NORTON 69078666749 is a Type 1 centerless cylindrical grinding wheel engineered for precision material removal on external cylindrical workpieces. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent stock removal and profile accuracy across a range of metalworking applications. It carries a 60-grit medium grade designation and a hardness rating of L (medium), making it well suited for moderate material removal where surface finish and dimensional control are both priorities. The full specification code is 64A60-LVCE. Machinists and grinding operators in production shops and tool rooms are the primary installers and users of this wheel.

This grinding wheel is sized for use on centerless and cylindrical grinding machines capable of accepting a 20-inch diameter wheel with an 8-inch width and a 12-inch arbor hole. It is appropriate for both through-feed and in-feed centerless grinding operations on ferrous metals and other materials compatible with aluminum oxide abrasive. The non-porous, vitrified bond construction provides the rigidity and form-holding capability required in high-volume production environments as well as precision job-shop settings.

Key Features

• Aluminum oxide abrasive with vitrified bond for rigid, consistent cutting action
• 60 grit medium grade (64A60-LVCE specification) balances material removal rate with surface finish
• Wheel hardness rating L (medium) supports a wide range of workpiece materials
• Non-porous construction maintains wheel geometry under continuous grinding loads
• Maximum rated speed of 1625 RPM for safe operation within machine parameters
• No recess, gray wheel body — straightforward mounting on standard arbors

Compatibility

Designed for use on centerless and cylindrical grinding machines accepting a 20-inch diameter, 8-inch wide wheel with a 12-inch arbor hole. Confirm machine speed rating meets or does not exceed the 1625 RPM maximum before mounting.

Installation Notes

Grinding wheel installation must be performed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always perform a ring test before mounting to check for cracks or damage. Power down and lock out the grinding machine before mounting or removing the wheel, and ensure all flanges, blotters, and guards are correctly installed before returning the machine to service. Never exceed the maximum rated operating speed of 1625 RPM.