Tru-maxx 66253255897 Surface Grinding Wheel 7in 60 Grit

Product Description

The TRU-MAXX 66253255897 is a Type 1 surface grinding wheel designed for precision flat grinding operations on surface grinders. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel is made from aluminum oxide abrasive with a vitrified bond, rated at J hardness with a medium grade and semi-friable grain structure. With a maximum operating speed of 3600 RPM, this wheel is suited for controlled material removal on ferrous metals and tool steels. It weighs 2 pounds and features a white wheel color for easy identification in shop environments.

This wheel is used in surface grinding applications on horizontal spindle, reciprocating table surface grinders. It is well suited for tool rooms, machine shops, and maintenance environments where flat stock, tooling, and hardened parts require accurate grinding. The 60 grit provides a moderate stock removal rate while still producing a reasonably smooth finish. Licensed machinists, tool and die makers, and industrial maintenance technicians are the primary installers and operators of this wheel.

Key Features

• Type 1 flat wheel profile — no recess, compatible with standard surface grinder flanges
• Aluminum oxide abrasive grain — well suited for ferrous metals and general-purpose surface grinding
• Vitrified bond — offers rigid wheel structure and good form-holding during grinding passes
• Semi-friable grain structure — self-sharpening tendency helps maintain cutting action over the wheel life
• J hardness code, medium grade — balanced wheel hardness for moderate grinding pressure applications
• Non-porous construction — consistent grinding performance and structural integrity

Compatibility

Designed as an OEM-style replacement or standard consumable for horizontal spindle surface grinders accepting a 7 inch diameter, 1/2 inch thick, Type 1 wheel with a 1-1/4 inch arbor hole.

Installation Notes

Grinding wheel mounting must be performed by a qualified machinist or operator following ANSI B11.22 and OSHA 29 CFR 1910.215 guidelines. Always inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the rated maximum speed of 3600 RPM. Power down and lock out the surface grinder before removing or installing any wheel. Flanges must be clean, flat, and blotted with compressible paper washers on both sides before tightening the arbor nut.