Tru-maxx T1-7P31244-T Surface Grinding Wheel 46 Grit

Product Description

The TRU-MAXX T1-7P31244-T is a Type 1 straight surface grinding wheel engineered for precision stock removal on surface grinders. It measures 7 inches in diameter, 1 inch thick, with a 1-1/4 inch arbor hole. The abrasive grain is aluminum oxide bonded with a vitrified bond, rated at H hardness with a grain structure of 6. The coarse 46-grit specification makes this wheel suited for aggressive material removal on ferrous metals. Machinists and tool room operators rely on this wheel type for flat-surface and horizontal-spindle grinding applications.

This wheel is appropriate for horizontal-spindle, reciprocating-table surface grinders commonly found in machine shops and tool rooms. The Type 1 straight profile fits standard surface grinder spindles with a 1-1/4 inch bore. The vitrified bond and semi-friable aluminum oxide grain allow the wheel to self-dress gradually during use, maintaining a consistent cut on ferrous workpieces. It is a non-porous, no-recess design suitable for general-purpose surface grinding in both production and maintenance environments.

Key Features

• Type 1 straight wheel profile — fits horizontal-spindle surface grinders with a 1-1/4 inch bore
• 46 grit, coarse grade — optimized for high material removal rates on ferrous metals
• H hardness (soft hardness rating) — releases abrasive grain readily to resist glazing
• Vitrified bond — provides rigidity, porosity control, and thermal resistance during grinding
• Semi-friable aluminum oxide grain — fractures under load to expose fresh cutting edges
• Maximum rated speed of 3600 RPM — sized for standard 7-inch surface grinder spindles

Compatibility

Designed as an OEM-style replacement grinding wheel for horizontal-spindle surface grinders accepting a Type 1 straight wheel with a 7-inch diameter, 1-inch thickness, and 1-1/4 inch arbor bore.

Installation Notes

Grinding wheel mounting and dressing should be performed by qualified machinists or tool room personnel following ANSI B11.9 and OSHA 1910.215 guidelines. Power down and lock out the machine before mounting or removing the wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never operate above the 3600 RPM maximum rated speed marked on the wheel. Always dress the wheel with an appropriate dressing tool before the first use and after any wheel storage period.