Norton 66243528831 Surface Grinding Wheel 24 Grit

Product Description

The NORTON 66243528831 is a Type 1 straight surface grinding wheel designed for aggressive material removal on ferrous and non-ferrous metals. It measures 3 inches in diameter and 1/4 inch thick with a 3/8 inch arbor hole, and carries a 24-grit aluminum oxide abrasive bonded in a vitrified matrix. The T hardness code indicates a hard wheel grade suited to softer and medium-hardness workpiece materials. Rated to 20,370 RPM, it is used in flexible shaft grinders and ID grinders where controlled, high-speed stock removal is required. Machinists, tool and die technicians, and metalworking professionals typically specify this wheel for precision grinding operations.

This wheel is suited for both residential shop and light industrial environments wherever a compact 3-inch straight wheel is needed. It performs on 300 and 400 series stainless steels, hard and soft carbon steels, tool steels, titanium, super alloys, aluminum, brass, bronze, copper, cast iron, ductile iron, and gray iron. Its very coarse grade makes it appropriate for rough grinding and heavy stock removal rather than fine finishing passes. It mounts in flexible shaft grinders and ID grinders.

Key Features

• 24-grit aluminum oxide abrasive for very coarse, high-removal grinding
• Vitrified bond provides rigidity and consistent cutting action
• T hardness code rated hard for use on softer workpiece materials
• 20,370 RPM maximum speed rating for flexible shaft and ID grinder applications
• Non-porous, non-tapered, no-recess Type 1 straight wheel geometry
• Specification grade 57A24-TBRA for traceability and consistent performance

Compatibility

Designed for use with flexible shaft grinders and ID grinders requiring a Type 1 straight wheel with a 3/8 inch arbor hole. Compatible material applications include 300 Series Stainless, 400 Series Stainless, hard and soft carbon steels, tool steels, titanium, super alloys, aluminum, brass, bronze, copper, cast iron, ductile iron, and gray iron.

Installation Notes

Mounting and dressing of grinding wheels should be performed by qualified machinists or toolroom technicians following ANSI B7.1 safety standards. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before each use and perform a ring test; do not install a damaged wheel. Verify that the grinder spindle speed does not exceed the 20,370 RPM maximum rating stamped on the wheel.