Norton 66252830737 Type 11 Grinding Wheel 5 in 60 Grit

Product Description

The NORTON 66252830737 is a Type 11 flaring cup grinding wheel engineered for precision tool grinding and surface conditioning applications. Built with ceramic alumina abrasive and a vitrified bond, this wheel delivers controlled, consistent stock removal on hardened steels and tool steels. It measures 5 inches in diameter with a 1-3/4 inch overall thickness and a 1/4 inch face width. Rated to a maximum of 4,585 RPM, the K hardness code and semi-friable grain structure help maintain sharp cutting edges throughout the wheel's life. This wheel is intended for use by tool and die specialists, machinists, and industrial grinding professionals.

This grinding wheel is suited for tool room environments, production grinding operations, and bench grinder setups where tight dimensional control is required. The Type 11 cup profile makes it appropriate for face grinding, off-hand tool sharpening, and reconditioning of cutting tools such as end mills, drill bits, and form tools. The ceramic alumina grain is well matched to applications on hardened high-speed steel and alloy tool steel workpieces.

Key Features

• Ceramic alumina abrasive for consistent cut rate on hardened tool steels
• Vitrified bond provides rigid support and maintains wheel form
• K hardness (medium grade) balances wheel life with free cutting action
• Semi-friable grain structure promotes self-sharpening during use
• Non-porous construction reduces loading on ferrous materials
• Type 11 cup profile designed for face grinding and tool reconditioning

Compatibility

Designed as a direct-fit replacement or standard toolroom grinding wheel for bench grinders and pedestal grinders equipped with a 1-1/4 inch arbor bore and capable of accommodating a 5 inch diameter Type 11 wheel.

Installation Notes

Installation should be performed by a qualified machinist or tool grinding technician following ANSI B7.1 safe mounting practices for abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before mounting and perform a ring test per standard procedure. Never exceed the rated maximum RPM of 4,585; confirm the grinder speed plate before operation.