Tru-maxx 66253269531 Surface Grinding Wheel 46 Grit

Product Description

The TRU-MAXX 66253269531 is a Type 1 surface grinding wheel engineered for precision stock removal on surface grinders. Constructed from aluminum oxide abrasive with a vitrified bond, it measures 10 inches in diameter, 1 inch thick, and accepts a 3-inch arbor hole. The 46-grit coarse grade and I-hardness (soft) rating make this wheel well-suited for aggressive material removal on ferrous metals. The vitrified bond provides a rigid, porous-free structure that holds form under sustained grinding pressure. Rated at a maximum of 3250 RPM, this wheel is intended for use by machinists, tool-and-die workers, and maintenance professionals operating horizontal or vertical spindle surface grinders.

This wheel is a standard fit for surface grinding applications in machine shops, maintenance facilities, and industrial production environments. Its coarse 46-grit structure makes it effective for rapid metal removal before finish grinding passes. The non-porous vitrified bond maintains consistent cutting action across a range of ferrous workpieces. The 3-inch hole size accommodates direct mounting on standard surface grinder spindles without adapters in most configurations. This wheel is installed by machinists and grinding equipment operators following standard wheel-mounting procedures.

Key Features

• Type 1 straight wheel profile for use on horizontal and vertical spindle surface grinders
• 46-grit aluminum oxide abrasive for coarse, high-speed stock removal
• Vitrified bond with non-porous structure for form stability and consistent cut
• I-hardness (soft) rating allows abrasive to release freely, reducing heat buildup
• Semi-friable grain structure balances cutting action and wheel life
• Maximum rated speed of 3250 RPM for safe operation on compatible machines

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for surface grinders equipped with a 3-inch arbor and capable of accepting a 10-inch diameter Type 1 wheel rated at or below 3250 RPM.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator. Always de-energize and lock out the grinder before mounting or removing wheels. Inspect the wheel for cracks or chips before installation and perform a ring test per ANSI B7.1 standards. Never exceed the maximum rated speed of 3250 RPM, and ensure flanges and blotters are in good condition before tightening.