Norton 66243528696 60 Grit Type 1 Internal Grinding Wheel

Product Description

The NORTON 66243528696 is a Type 1 internal grinding wheel designed for precision bore and internal diameter grinding operations. Built with aluminum oxide abrasive, it operates at a maximum speed of 10,825 RPM and features a vitrified bond that provides rigidity and consistent stock removal. At 60 grit with medium grade and K hardness, this wheel is suited for general-purpose material removal where surface finish and dimensional control are both important. It weighs 2.86 pounds and fits standard internal grinding spindles used in machine shops and grinding operations.

This wheel is used in internal grinding applications where a bore, sleeve, or cylindrical interior surface requires precision sizing or finishing. The Type 1 straight-wheel profile and no-recess configuration make it compatible with standard internal grinding arbors and spindle setups. Typical applications include production grinding of ferrous metals and hardened components in industrial and job-shop environments. A licensed machinist or grinding specialist is the expected installer and operator.

Key Features

• Aluminum oxide abrasive for reliable grinding of ferrous metals and hardened steels
• 60 grit medium grade for balanced stock removal and surface finish
• K hardness vitrified bond for consistent wheel performance and open structure
• 10,825 maximum RPM rating for safe operation on standard internal grinding machines
• Type 1 straight profile with no recess for straightforward arbor mounting
• Gray wheel color for easy visual identification of abrasive type

Compatibility

Designed as a standard Type 1 internal grinding wheel for use on conventional internal grinding machines that accept a 3-inch diameter wheel with a 1/2-inch hole and 1/4-inch thickness.

Installation Notes

Internal grinding wheels must be installed by qualified machine operators or grinding specialists following ANSI B7.1 safety requirements for abrasive wheels. Before mounting, power down and lock out the grinding machine completely. Perform a ring test on the wheel to check for cracks before installation, and never exceed the rated maximum RPM of 10,825. Always use the correct flanges and blotters for the wheel size and confirm the spindle speed matches the wheel rating before operation.