Norton 66253246820 Surface Grinding Wheel 7in 60 Grit

Product Description

The NORTON 66253246820 is a Type 1 vitrified aluminum oxide surface grinding wheel rated for demanding material removal on ferrous and non-ferrous workpieces. The wheel measures 7 inches in diameter and 1/2 inch thick with a 1-1/4 inch arbor hole. A 60-grit medium-grade abrasive and J hardness code deliver an efficient balance of stock removal and wheel life. Maximum operating speed is 3,600 RPM. This wheel is a fit for surface grinders, cylindrical grinders, and CNC cutting tool machines used in production and job-shop environments. Installation and use should be performed by qualified grinding machine operators following applicable ANSI B11 and OSHA abrasive-wheel standards.

This wheel is suited for surface and cylindrical grinding operations on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Its vitrified bond provides consistent performance across these materials in both light-duty finishing passes and moderate stock-removal cycles. The non-porous, non-tapered, non-recessed Type 1 straight profile is the most common wheel geometry for horizontal-spindle surface grinders found in machine shops and maintenance facilities.

Key Features

• 60-grit aluminum oxide abrasive for medium stock removal on steels and irons
• J hardness (medium grade) vitrified bond — Series 32A Type 1
• 3,600 RPM maximum operating speed
• Non-porous, non-tapered, non-recessed Type 1 straight wheel profile
• Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines
• Suitable for 400 series stainless, carbon steels, tool steels, aluminum, and cast and ductile iron

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Abrasive wheel mounting must be performed by a qualified operator. Always power down and lock out the grinding machine before mounting or removing a wheel. Inspect the wheel for cracks or chips using a ring test before installation and never exceed the marked maximum RPM of 3,600. Follow ANSI B11.9 and applicable OSHA 29 CFR 1910.215 requirements for abrasive wheel guarding and machine setup.