Tru-maxx 66253255435 Surface Grinding Wheel 12in 60 Grit

Product Description

The TRU-MAXX 66253255435 is a Type 1 straight surface grinding wheel designed for precision stock removal and surface finishing on ferrous metals and similar materials. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent cut rates and good form-holding under shop conditions. The wheel measures 12 inches in diameter, 1 inch thick, with a 5-inch arbor hole, and carries a 60-grit, medium-grade specification rated to a maximum of 2705 RPM. At 8 pounds, it is suited for stationary surface grinders found in machine shops, tool rooms, and maintenance departments. The semi-friable grain structure supports self-sharpening action during use, helping maintain an open cutting face.

This wheel fits horizontal-spindle surface grinders configured for a 12-inch diameter, 5-inch hole mount. The 60-grit aluminum oxide composition makes it a practical choice for general-purpose surface grinding where moderate material removal and a reasonably smooth finish are both required. The vitrified bond performs well across a range of coolant conditions, including dry and wet grinding setups. It is commonly installed by machinists and grinding technicians in production and job-shop environments where consistent, repeatable surface quality is the goal.

Key Features

• Type 1 straight wheel profile — no recess, non-tapered for standard surface grinder spindle mounting
• Aluminum oxide abrasive with semi-friable grain structure supports self-sharpening cutting action
• Vitrified bond provides rigidity and good form retention during flat surface work
• 60 grit, medium grade (Hardness Code I) balances stock removal rate with surface finish quality
• 2705 RPM maximum speed rating — verify spindle RPM before mounting
• White wheel color aids visual inspection of wear and loading during service

Compatibility

Designed for use on horizontal-spindle surface grinders accepting a 12-inch diameter wheel with a 5-inch arbor hole and 1-inch face width. Confirm machine spindle speed does not exceed 2705 RPM before installation.

Installation Notes

Grinding wheel installation must be performed by a qualified machinist or grinding technician following ANSI B11.22 and applicable shop safety standards. Always perform a ring test before mounting to check for cracks, and never exceed the wheel's marked maximum RPM. Power down and lock out the grinder before changing wheels, and run the newly mounted wheel under guard at operating speed for at least one minute before applying it to work. Flanges, blotters, and arbor hardware must be inspected and correctly seated to prevent imbalance or wheel failure.