Norton 66252942104 Surface Grinding Wheel 7in 100 Grit

Product Description

The NORTON 66252942104 is a Type 1 surface grinding wheel designed for precision stock removal and finishing on a wide range of metallic and non-metallic materials. Built around a silicon carbide abrasive grain and bonded with a vitrified bond, this wheel delivers consistent cut rate and wheel form retention throughout its service life. It measures 7 inches in diameter, 3/4 inches thick, with a 1-1/4 inch arbor hole, and is rated to a maximum of 3600 RPM. Grit is 100 (Fine grade) with a J hardness code, placing it in the medium-hardness range. Licensed machinists, tool and die shops, and maintenance trades are the primary installers and operators.

This wheel is suited for surface grinding and cylindrical grinding applications in both job shop and production environments. Its silicon carbide abrasive makes it effective on non-ferrous metals and harder-to-grind materials. Compatible machine types listed by the manufacturer include surface grinders, cylindrical grinders, and CNC cutting tool machines. Listed material applications include 300 Series Stainless, Titanium, Aluminum, Brass, Bronze, Copper, Gray Iron, Masonry, and Natural Stone.

Key Features

• Silicon carbide abrasive grain provides aggressive cut on non-ferrous metals, cast iron, and masonry
• Vitrified bond maintains wheel form and allows for dressability during grinding operations
• 100 grit, Fine grade for controlled material removal with a smooth finish
• J hardness (medium) balances wheel wear rate against cut efficiency
• Non-porous, non-tapered, no-recess Type 1 straight wheel profile for broad machine compatibility
• Green wheel color consistent with silicon carbide series identification

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines as stated by the manufacturer. Suitable for grinding 300 Series Stainless, Titanium, Aluminum, Brass, Bronze, Copper, Gray Iron, Masonry, and Natural Stone. Part of the NORTON 39C Type 1 series; manufacturer specification code 39C100-JVMT.

Installation Notes

Grinding wheel mounting and operation must be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 general industry grinding safety standards. Always perform a ring test before mounting and confirm the machine spindle speed does not exceed the 3600 RPM maximum rating stamped on the wheel. Power down and lock out the grinder before changing wheels. Never use a grinding wheel that has been dropped or shows visible cracking.