Tru-maxx 66253269544 Surface Grinding Wheel 12in 46 Grit

Product Description

The TRU-MAXX 66253269544 is a Type 7 recessed surface grinding wheel engineered for precision stock removal on surface grinders. It measures 12 inches in diameter, 2 inches thick, with a 5-inch arbor hole and a 7.5-inch two-side recess. The abrasive grain is aluminum oxide with a vitrified bond, rated at 46 grit for coarse-grade material removal. Hardness code I places it in the soft range, which allows the wheel to shed dull grains and expose fresh cutting edges efficiently. Maximum operating speed is 2,705 RPM. At 15 pounds, this wheel is suited for heavy-duty surface grinding applications in metalworking environments.

This wheel is used in industrial and shop environments where flat surface finishing or aggressive stock removal on ferrous metals is required. The coarse 46-grit rating makes it appropriate for roughing passes and weld cleanup rather than fine finish work. The Type 7 double-recessed configuration is standard for surface grinder spindle setups that require clearance on both faces. Machinists, tool and die makers, and maintenance technicians are the primary installers and operators of this wheel type.

Key Features

• Type 7 double-recessed wheel with 7.5-inch two-side recess for surface grinder compatibility
• 46-grit coarse aluminum oxide abrasive for aggressive stock removal on ferrous materials
• Vitrified bond provides rigidity and porosity control for consistent cut performance
• Hardness code I (soft) promotes self-dressing action, reducing glazing during use
• Semi-friable grain structure balances abrasive life with cutting sharpness
• Rated to 2,705 RPM maximum operating speed

Compatibility

Designed as a Type 7 recessed surface grinding wheel for use on surface grinders with a 5-inch arbor hole and spindle configurations that accept a 12-inch diameter wheel.

Installation Notes

Wheel mounting and dressing should be performed by a qualified machinist or maintenance technician familiar with ANSI B11.9 surface grinder safety standards. Always inspect the wheel for cracks or chips using a ring test before mounting. Power down and lock out the grinder before changing wheels. Never exceed the 2,705 RPM maximum speed rating marked on the wheel.