Tru-maxx 66253292446 Surface Grinding Wheel 7in 60 Grit

Product Description

The TRU-MAXX 66253292446 is a Type 1 surface grinding wheel designed for precision stock removal and surface finishing on ferrous metals and hard materials. Built with aluminum oxide abrasive grain and a vitrified bond, this wheel delivers consistent cut rates and good form retention across the grinding arc. At 60 grit with K hardness (medium grade), it targets medium-to-rough surface work where controlled material removal is the priority. The semi-friable grain structure allows the wheel to fracture under load, continually exposing fresh cutting edges. This wheel is installed and operated by machinists, tool and die makers, and grinding machine technicians in shop environments.

This wheel fits horizontal-spindle surface grinders and compatible bench or pedestal machines accepting a Type 1 straight-wheel profile. The 7-inch diameter and 1-1/4-inch arbor hole suit a wide range of production and toolroom surface grinders. With a maximum operating speed of 3600 RPM, it is suited to lighter-duty spindle configurations typical of surface grinding applications rather than high-speed cut-off or cylindrical work. The white wheel color is consistent with standard aluminum oxide formulations used for general-purpose ferrous grinding.

Key Features

• Type 1 straight-wheel profile — no recess, flat face for surface grinding applications
• Aluminum oxide abrasive with vitrified bond for consistent form retention and free cutting action
• Semi-friable grain structure continuously exposes fresh abrasive under grinding load
• 60 grit, K hardness (medium grade) balances stock removal rate with surface finish quality
• Rated to 3600 RPM maximum operating speed
• Non-porous construction with grain structure rating of 6

Compatibility

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

Installation Notes

Surface grinding wheels must be installed by qualified machine operators or maintenance personnel in accordance with ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before mounting or removing the wheel. Never exceed the maximum operating speed of 3600 RPM stamped on the wheel blotter.