Tru-maxx 66253255467 Surface Grinding Wheel 8in 60 Grit

Product Description

The TRU-MAXX 66253255467 is a Type 1 straight surface grinding wheel designed for precision material removal on surface grinders. It measures 8 inches in diameter and 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel is constructed from white aluminum oxide abrasive bonded in a vitrified matrix, rated at a medium grade with a K hardness code. At 60 grit, it delivers a balance of stock removal and surface finish quality suited to ferrous metals and tool steels. Maximum operating speed is 3,600 RPM. The wheel weighs approximately 2 pounds and carries the specification designation 28A60K6V31.

This wheel is appropriate for surface grinding operations in machine shops, toolrooms, and maintenance grinding applications. It is suited for use on reciprocating surface grinders where a flat, consistent cutting action is required. The vitrified bond provides good porosity control and dimensional stability under heat. The semi-friable aluminum oxide grain self-sharpens during use, making it well-suited for grinding hardened steels, cast iron, and similar ferrous workpieces requiring controlled stock removal.

Key Features

• Type 1 straight wheel profile with no recess for standard surface grinder spindle mounting
• White aluminum oxide abrasive for semi-friable grain action on ferrous metals
• Vitrified bond for dimensional stability and consistent cut under heat
• 60 grit medium grade balances stock removal rate with surface finish quality
• K hardness code with grain structure 6 for controlled wheel breakdown
• Rated to 3,600 RPM maximum operating speed

Compatibility

Designed as a standard Type 1 straight surface grinding wheel for reciprocating surface grinders accepting an 8 inch diameter wheel with a 1-1/4 inch arbor hole and 1/2 inch width.

Installation Notes

Installation should be performed by qualified machine operators or maintenance personnel familiar with grinding wheel safety. Always inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the rated maximum RPM of 3,600. Power down and lock out the grinder before changing wheels. Follow ANSI B11.9 and applicable shop safety standards for wheel mounting, guarding, and flange torque procedures.