Tru-maxx 66253255479 Surface Grinding Wheel 100 Grit

Product Description

The TRU-MAXX 66253255479 is a Type 1 surface grinding wheel designed for precision flat and surface grinding applications. Measuring 7 inches in diameter, 1/4 inch thick, with a 1-1/4 inch arbor hole, this wheel is built from aluminum oxide abrasive with a vitrified bond. It is rated at 100 grit with an I hardness code, placing it in the soft-to-medium hardness range. The vitrified bond provides rigidity and porosity control suited for consistent stock removal. At a maximum operating speed of 3600 RPM, it delivers controlled material removal on surface grinders used in machine shops, tool rooms, and maintenance environments.

This wheel is suited for surface grinding ferrous metals and similar workpiece materials on horizontal-spindle reciprocating-table surface grinders. The fine 100-grit aluminum oxide construction makes it appropriate for finishing passes and light stock removal where surface finish quality matters. The Type 1 flat wheel geometry fits standard surface grinder spindle configurations. Machinists, tool-and-die makers, and maintenance technicians working in industrial and shop environments are the primary users of this wheel.

Key Features

• Type 1 flat wheel geometry with no recess — fits standard surface grinder arbors
• Aluminum oxide abrasive grain — effective on ferrous metals and general-purpose grinding
• Vitrified bond — non-porous, rigid bond for consistent cutting action
• 100 grit, I hardness (soft range) — fine material removal with controlled wear rate
• 3600 RPM maximum rated speed — safe operating limit for standard surface grinder spindles
• Semi-friable grain structure, grain structure rating 6 — self-sharpening behavior during use

Compatibility

Designed as an OEM-style replacement or standard consumable for horizontal-spindle surface grinders accepting a Type 1 wheel with a 7 inch diameter, 1/4 inch thickness, and 1-1/4 inch arbor hole bore.

Installation Notes

Grinding wheel mounting must be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Always ring-test the wheel for cracks before mounting and use proper flanges and blotters. Never exceed the 3600 RPM maximum rated speed stamped on the wheel. Dress the wheel after mounting before making contact with the workpiece.