Tru-maxx 66243496742 Type 5 Surface Grinding Wheel

Product Description

The TRU-MAXX 66243496742 is a Type 5 recessed surface grinding wheel designed for precision stock removal on ferrous metals and tool steel. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cutting action and thermal stability under sustained grinding pressure. At 12 inches in diameter and 1-1/2 inches thick, it fits surface grinders requiring a 5-inch arbor hole. The 46-grit coarse grade and I-hardness rating make it well suited for aggressive material removal passes where surface finish is secondary to stock reduction rate. Maximum operating speed is 2069 RPM. Specification code 29A46I5V31 confirms abrasive type, grit, hardness, grain structure, and bond for shops that match wheels to machine requirements.

This wheel is used in surface grinding operations across machine shops, tool-and-die facilities, and industrial maintenance environments. The Type 5 recessed geometry with a 7-1/2-inch recess diameter on one side allows clearance for flanges and is a common configuration for horizontal-spindle surface grinders. The semi-friable aluminum oxide grain self-sharpens during use, extending wheel life on hard ferrous workpieces. The pink wheel color is consistent with aluminum oxide abrasive formulations used in precision and semi-precision grinding applications.

Key Features

• Type 5 recessed wheel with 7-1/2-inch one-side recess for flange clearance
• Aluminum oxide abrasive with vitrified bond for thermal stability and rigidity
• 46 grit coarse grade suited for high stock removal on ferrous materials
• I hardness (soft rating) allows the wheel to shed dull grains and resist glazing
• Semi-friable grain structure promotes consistent self-sharpening action
• Non-porous grain structure at grain structure rating 5

Compatibility

Designed for use on horizontal-spindle surface grinders accepting a Type 5 wheel with a 5-inch arbor hole and a maximum spindle speed at or below 2069 RPM. Confirm machine spindle speed and guard rating before mounting.

Installation Notes

Grinding wheel mounting and dressing must be performed by a qualified machinist or grinding specialist following ANSI B11.9 and applicable shop safety standards. Power down and lock out the grinder before removing or installing any wheel. Inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the 2069 RPM maximum operating speed marked for this wheel. Use proper blotters and flanges as specified by the machine manufacturer.