Tru-maxx 66253269770 Surface Grinding Wheel 7in 60G

Product Description

The TRU-MAXX 66253269770 is a Type 5 recessed surface grinding wheel engineered for precision stock removal on surface grinders. Built from aluminum oxide abrasive with a vitrified bond, it delivers consistent cut rates and good wheel life across a range of ferrous and toolroom applications. At 7 inches in diameter and 1 inch thick with a 1-1/4 inch arbor hole, this wheel mounts directly to compatible spindle configurations. The 60 grit, K hardness (medium grade) combination suits intermediate material removal where surface finish and geometry control matter. Rated to 3600 RPM, it is appropriate for bench and surface grinding machines operating within that speed range. The specification code 29A60K6V31 confirms the full bond, grain, and grade classification.

This wheel is intended for use on horizontal-spindle surface grinders in machine shops, tool rooms, and maintenance departments. The Type 5 one-side recess profile with a 2-3/4 inch recess diameter provides clearance for spindle flanges and is a standard configuration for surface grinding applications. The pink aluminum oxide grain is semi-friable, meaning it fractures under load to expose fresh cutting edges, making it well suited for general-purpose tool steel, high-speed steel, and similar ferrous workpieces. Installation and dressing are typically performed by machinists or skilled grinder operators.

Key Features

• Type 5 one-side recessed profile with 2-3/4 inch recess diameter for spindle clearance
• Aluminum oxide abrasive with vitrified bond for consistent, controlled cut rates
• 60 grit, K hardness (medium grade) for intermediate stock removal
• Semi-friable grain structure promotes self-sharpening under load
• Maximum operating speed of 3600 RPM
• Full specification: 29A60K6V31

Compatibility

Designed as a standard Type 5 surface grinding wheel replacement for horizontal-spindle surface grinders accepting a 7 inch diameter, 1-1/4 inch arbor hole wheel rated to 3600 RPM.

Installation Notes

Mounting and dressing of grinding wheels should be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Always perform a ring test before mounting and verify the machine spindle speed does not exceed the 3600 RPM rated wheel speed. Power down and lock out the grinder before changing wheels. Never exceed the rated maximum RPM under any operating condition.