Norton 66253319953 Type 5 Surface Grinding Wheel 46 Grit

Product Description

The NORTON 66253319953 is a Type 5 recessed surface grinding wheel engineered for demanding material removal on ferrous metals and hard-to-grind alloys. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent stock removal and long wheel life in high-production grinding operations. The coarse 46 grit and G hardness code (soft hardness rating) allow the wheel to cut freely and release dull grains quickly, maintaining an open, aggressive cutting action. Rated at a maximum of 2320 RPM, it is sized at 14 inches in diameter and 1-1/2 inches thick with a 5-inch arbor hole. A licensed HVAC tech or surface grinder operator in a tool-and-die or maintenance shop environment would typically install and dress this wheel for precision flat grinding applications.

This grinding wheel is suited for use on surface grinders and cylindrical grinders in both industrial and maintenance shop environments. It is designed for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The semi-friable ceramic grain structure makes it particularly effective on hard, heat-sensitive materials where conventional aluminum oxide wheels would glaze or burn the workpiece. The one-side recessed Type 5 profile with an 8-inch recess diameter and 1/2-inch recess depth suits flange-mount configurations common on production surface grinders.

Key Features

• Ceramic abrasive grain with vitrified bond for consistent cut rate and extended wheel life
• 46 grit coarse grade with G (soft) hardness rating for free-cutting, self-dressing action
• Type 5 one-side recessed profile: 8-inch recess diameter, 1/2-inch recess depth
• Maximum operating speed of 2320 RPM — verify this rating before mounting
• Semi-friable grain construction reduces heat buildup on sensitive alloys and stainless steel
• Compatible with surface grinders and cylindrical grinders across a broad range of ferrous workpiece materials

Compatibility

Designed for use with surface grinders and cylindrical grinders. Suitable for material applications including 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Series designation 3SG Type 5; specification code 3SGR46-GVP2.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or maintenance technician following ANSI B11.9 and OSHA 1910.215 safety standards for abrasive wheel machinery. Always power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips using a ring test before installation, and never exceed the maximum RPM stamped on the wheel or listed on the blotter. Use proper flanges and a clean, undamaged arbor to ensure secure, centered mounting.