Tru-maxx 66253255786 Surface Grinding Wheel 46 Grit 7in

Product Description

The TRU-MAXX 66253255786 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and general-purpose surface grinding applications. The wheel is constructed from aluminum oxide abrasive bonded with a vitrified bond, producing a white, non-porous wheel that holds its form well under load. At 46 grit with an I hardness (coarse grade, semi-friable), it cuts aggressively while still releasing worn abrasive grains at a controlled rate. Rated to 3600 RPM maximum, the wheel measures 7 inches in diameter, 3/4 inches thick, and accepts a 1-1/4 inch arbor. Specification code 23A46I6V31 is marked on the wheel. Installed and dressed by machinists or toolroom technicians, it fits standard horizontal-spindle surface grinders.

This wheel is suited for surface grinding operations on horizontal-spindle, reciprocating-table grinders found in machine shops, toolrooms, and maintenance departments. The coarse, 46-grit cut makes it appropriate for rapid material removal before finish-grinding passes. The aluminum oxide composition handles carbon steel, alloy steel, and similar ferrous workpieces. The vitrified bond provides rigidity and open structure for coolant penetration and chip clearance during wet or dry grinding cycles.

Key Features

• Aluminum oxide abrasive — suited for carbon steel, alloy steel, and general ferrous grinding
• Vitrified bond — rigid, heat-resistant, maintains wheel form under sustained load
• 46 grit, I hardness (coarse, semi-friable) — aggressive stock removal with controlled grain release
• 3600 RPM maximum operating speed
• Non-porous, non-tapered Type 1 flat wheel construction — no recess
• Specification 23A46I6V31 printed on wheel for grade verification

Compatibility

Designed as an OEM-style replacement or direct-fit wheel for horizontal-spindle surface grinders that accept a 7 inch diameter, 3/4 inch thick, Type 1 wheel with a 1-1/4 inch arbor bore.

Installation Notes

Surface grinding wheels must be mounted, inspected, and dressed by qualified personnel following ANSI B11.23 and applicable shop safety standards. Before mounting, ring-test the wheel for cracks and confirm the grinder spindle speed does not exceed the 3600 RPM maximum marked on the wheel. Power down and lock out the grinder before changing wheels. Never exceed the rated maximum RPM, and always install proper wheel flanges and a blotter on each side of the wheel per manufacturer guidelines.