Tru-maxx 66253255430 Surface Grinding Wheel 46 Grit

Product Description

The TRU-MAXX 66253255430 is a Type 1 surface grinding wheel designed for precision stock removal on surface grinders in metalworking and toolroom applications. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and good form-holding throughout its service life. It measures 7 inches in diameter, 1/2 inch thick, and carries a 1-1/4 inch arbor hole. The 46-grit coarse grade with G hardness rating makes it well suited for moderate material removal on ferrous metals where surface finish is secondary to stock removal rate.

This wheel is intended for use on horizontal-spindle surface grinders in production and maintenance grinding environments. The vitrified bond construction provides rigidity and allows the wheel to be dressed readily to maintain a true, open cutting face. The white aluminum oxide grain and semi-friable abrasive characteristic support cooler cutting on hardened steels and tool steels. The porous grain structure, rated 12, aids chip clearance and reduces heat buildup during extended passes. A licensed machinist, toolroom grinder operator, or qualified maintenance technician is the typical installer and operator for this product.

Key Features

• Type 1 straight wheel profile for use on standard horizontal-spindle surface grinders
• Aluminum oxide abrasive with vitrified bond for consistent form retention and easy dressing
• 46-grit coarse grade rated G hardness for efficient stock removal on ferrous workpieces
• Semi-friable grain promotes cooler cutting and reduced thermal damage to hardened workpieces
• Porous grain structure (grade 12) enhances chip clearance during continuous passes
• Maximum rated speed of 3600 RPM for safe operation within rated spindle speeds

Compatibility

Designed as an OEM-style replacement or standard consumable for horizontal-spindle surface grinders accepting a 7-inch diameter, 1/2-inch thick, Type 1 wheel with a 1-1/4 inch arbor bore.

Installation Notes

Surface grinding wheels must be installed and operated by qualified personnel in accordance with ANSI B11.22 and OSHA 29 CFR 1910.215 guarding requirements. Before mounting, perform a ring test to confirm the wheel is free of cracks or damage. Power down and lock out the grinder completely before changing wheels, and confirm the spindle speed does not exceed the 3600 RPM maximum stamped on the wheel. Always use the proper flanges, blotters, and arbor hardware specified for the machine; never force a wheel onto an arbor bore.