Norton 66252939545 Surface Grinding Wheel 7in 46 Grit

Product Description

The NORTON 66252939545 is a Type 1 surface grinding wheel designed for stock removal and surface finishing on a wide range of ferrous and non-ferrous metals. Built on a vitrified bond with aluminum oxide abrasive, this wheel operates at a maximum of 3600 RPM and delivers a coarse, consistent cut. At 7 inches in diameter and 1/4 inch thick with a 1-1/4 inch arbor hole, it fits standard surface and cylindrical grinding spindles. The J hardness rating and 46 grit make it well-suited for aggressive material removal where surface finish is secondary to cut rate.

This wheel is used in surface grinding, cylindrical grinding, and CNC cutting tool machine applications. It is rated for use on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous structure of the wheel promotes chip clearance and reduces heat buildup during extended grinding passes, making it a practical choice for production environments where heat management and consistent stock removal matter.

Key Features

• Aluminum oxide abrasive with vitrified bond for durable, consistent cutting action
• 46 grit coarse grade for aggressive stock removal across multiple metal types
• J hardness (medium) balances wheel longevity with cutting performance
• Porous wheel structure supports chip clearance and thermal management
• Type 1 flat wheel profile fits standard surface and cylindrical grinder spindles
• Series 32A Type 1 specification: 32A46-JVBE

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Compatible with applications involving 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Installation should be performed by a qualified grinding machine operator or toolroom professional following ANSI B7.1 safety standards for abrasive wheel use. Always inspect the wheel for cracks or damage before mounting and conduct a ring test prior to installation. Power down and lock out the machine before changing wheels. Never exceed the maximum rated speed of 3600 RPM.