Tru-maxx 66253255640 Surface Grinding Wheel 80 Grit 7in

Product Description

The TRU-MAXX 66253255640 is a Type 1 straight surface grinding wheel designed for precision stock removal and surface finishing on ferrous metals and hard materials. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and good form retention across a wide range of grinding applications. It measures 7 inches in diameter, 1/4 inch thick, with a 1-1/4 inch arbor hole. The 80-grit, medium-grade specification makes it well suited for moderate material removal where a balance between cut speed and surface finish is required. Maximum rated speed is 3600 RPM.

This wheel is intended for use on surface grinders in tool rooms, maintenance shops, and production environments. The aluminum oxide grain and vitrified bond combination performs reliably on steel, tool steel, and similar ferrous workpieces. The semi-friable grain structure allows the wheel to self-sharpen incrementally during use, helping maintain cutting efficiency without excessive loading. It is a non-porous, non-tapered, flat-faced Type 1 configuration with no recess, compatible with standard surface grinder spindle setups using a 1-1/4 inch arbor.

Key Features

• Aluminum oxide abrasive for reliable performance on ferrous metals
• Vitrified bond provides rigidity and consistent form retention
• 80 grit, medium grade for balanced stock removal and surface finish
• Semi-friable grain promotes self-sharpening during grinding cycles
• Type 1 flat wheel profile with no recess for straightforward mounting
• Rated to 3600 RPM maximum operating speed

Compatibility

Designed as a standard replacement or stock wheel for surface grinders accepting a Type 1 wheel with a 1-1/4 inch arbor hole and a 7 inch diameter.

Installation Notes

Surface grinding wheels must be installed by qualified personnel following applicable ANSI B11.22 and OSHA standards for abrasive wheel machinery. Before mounting, perform a ring test to check for cracks and verify the wheel speed rating meets or exceeds the machine spindle speed. Always power down and de-energize the grinder, then use proper flanges and blotters as required. Never exceed the 3600 RPM maximum rated speed marked on the wheel.