Norton 66253246804 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253246804 is a Type 1 vitrified aluminum oxide surface grinding wheel rated for heavy stock removal on a wide range of ferrous and non-ferrous metals. At 14 inches in diameter and 1-1/2 inches thick, with a 5-inch arbor hole, it is built for production-level surface grinding operations. The 46-grit coarse grade with J hardness code delivers aggressive material removal while the vitrified bond maintains wheel shape under load. Maximum operating speed is 2,320 RPM. The 32A Series designation identifies it within NORTON's aluminum oxide line, a specification commonly called out in shop purchase orders and MRO procurement.

This wheel is suited for surface grinders, cylindrical grinders, and CNC cutting tool machines in industrial and job shop environments. Verified material applications include 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Typical users are tool and die shops, machine shops, and maintenance facilities running scheduled grinding operations on hardened or semi-hardened workpieces.

Key Features

• 46-grit coarse aluminum oxide abrasive for high material removal rates
• J hardness (medium wheel hardness rating) balances wheel life against cut aggressiveness
• Vitrified bond maintains form and allows coolant penetration during wet grinding
• Type 1 flat wheel profile with no recess and no taper — standard fitment for surface and cylindrical grinders
• Non-porous construction suited for precision surface finishing applications
• Blue and gray wheel color consistent with NORTON 32A Series identification

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines accepting a 14-inch diameter Type 1 wheel with a 5-inch arbor hole. Suitable for grinding 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron as stated in manufacturer specifications.

Installation Notes

Grinding wheel mounting must be performed by a qualified machine operator or maintenance technician following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. Always inspect the wheel for cracks or chips using a ring test before mounting. Power down and lock out the grinder before changing wheels, and verify the machine's maximum operating RPM meets or exceeds the wheel's 2,320 RPM rating before use. Never exceed the rated maximum RPM stamped or labeled on the wheel.