Tru-maxx 66253255470 Surface Grinding Wheel 80 Grit

Product Description

The TRU-MAXX 66253255470 is a Type 1 straight surface grinding wheel designed for precision material removal on surface grinders. It measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel is made from white aluminum oxide abrasive bonded with a vitrified bond, rated at I hardness and a grain structure of 6. The semi-friable abrasive breaks down under heat and pressure to expose fresh cutting edges, making it well suited for grinding harder ferrous metals. This wheel is used by machinists, tool and die makers, and grinding specialists working in job shops and precision machining environments.

This surface grinding wheel is intended for use on horizontal-spindle surface grinders in both production and toolroom applications. The 80 grit provides a medium-fine cut suitable for finishing passes on flat workpiece surfaces where dimensional accuracy and surface finish quality are important. The vitrified bond offers rigidity and free-cutting action across a range of steels and ferrous alloys. It is non-porous with no recess, making it a straightforward straight-wheel replacement for standard surface grinder spindle setups.

Key Features

• Type 1 straight wheel profile with no recess — fits standard surface grinder spindle flanges
• White aluminum oxide abrasive — semi-friable grain for cooler cutting on hardened steels
• Vitrified bond — rigid structure with free-cutting action and good form-holding
• 80 grit, I hardness, grain structure 6 — medium-fine material removal with controlled breakdown
• Rated to 3600 RPM maximum operating speed
• White wheel color for easy visual identification on the shop floor

Compatibility

Designed as an OEM-style replacement straight grinding wheel for horizontal-spindle surface grinders accepting an 8 inch diameter, 1/2 inch thick, 1-1/4 inch arbor hole Type 1 wheel.

Installation Notes

Surface grinding wheels must be installed by a qualified machinist or grinding specialist following ANSI B7.1 safe-use standards. Before mounting, power down and lock out the grinder completely. Inspect the wheel for cracks or chips using the ring test before installation, and always use proper flange hardware and blotters as required by the machine manufacturer. Never exceed the 3600 RPM maximum speed rating marked on the wheel.