Norton 69936662108 Surface Grinding Wheel 60 Grit 8 in

Product Description

The NORTON 69936662108 is a Type 1 surface grinding wheel engineered for precision material removal on ferrous workpieces. It measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole, and runs at a maximum of 3,600 RPM. The wheel uses aluminum oxide abrasive bonded with a vitrified bond in the 48A Series specification (48A60-IVBE), delivering consistent stock removal at 60 grit with medium-grade (I hardness code) cutting action. It carries a ruby wheel color and non-porous construction. Machinists and tool-room technicians use this wheel on surface grinders and similar precision grinding equipment.

This wheel is suited for surface grinding applications on hard carbon steels, soft carbon steels, and tool steels. The vitrified bond provides rigidity and free-cutting performance across these material types, making it a practical choice for production and maintenance grinding in machine shops, tool-and-die operations, and industrial MRO environments. Typical applications include flat surface finishing, reconditioning of tool steel blanks, and precision stock removal where consistent grit performance is required.

Key Features

• Aluminum oxide abrasive for reliable performance on carbon and tool steels
• Vitrified bond construction provides rigidity and a free-cutting action
• 60 grit, medium grade (I hardness) balances stock removal and surface finish
• Non-porous, no-recess Type 1 flat wheel design for standard surface grinder spindles
• Rated to 3,600 RPM maximum operating speed
• 48A Series specification (48A60-IVBE) for traceability and reorder consistency

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines accepting a Type 1 flat wheel with an 8 inch diameter, 1/2 inch thickness, and 1-1/4 inch arbor hole at speeds up to 3,600 RPM.

Installation Notes

Grinding wheel mounting should be performed by a qualified machinist or tool-room technician following ANSI B11.9 and OSHA 29 CFR 1910.215 guidelines. Always inspect the wheel for cracks or chips using the ring test before mounting, and confirm the machine spindle speed does not exceed the 3,600 RPM maximum rating marked on the wheel. Power down and lock out the grinder before installing or removing the wheel. Use proper flange hardware matched to the arbor hole size and do not over-tighten mounting hardware beyond equipment manufacturer specifications.