Norton 66260273583 Diamond Surface Grinding Wheel 4in 100G

Product Description

The NORTON 66260273583 is a Type 1A1 diamond surface grinding wheel designed for precision material removal on hard and brittle workpiece materials. Built on a resinoid bond with synthetic diamond (SD) abrasive at 100 concentration, this wheel delivers consistent cut rate and controlled surface finish during wet roughing operations. The wheel measures 4 inches in diameter, 1/16 inch thick, with a 1-1/4 inch arbor hole. At 100 grit and a fine grade with soft hardness (R), it suits applications where dimensional accuracy and surface integrity are critical. Grinding technicians and tool room machinists are the typical installers.

This wheel is suited for wet surface grinding operations in tool and die, carbide tooling, ceramics, and hard material roughing applications. The 1/4 inch superabrasive depth provides adequate wheel life for production and maintenance grinding tasks. The Type 1A1 straight wheel profile fits standard surface grinder spindles equipped with a 1-1/4 inch arbor. It is part of the Norton Diamond series and is intended for roughing passes where stock removal is the primary objective.

Key Features

• Synthetic diamond (SD) abrasive at 100 concentration for aggressive, consistent cutting action on hard materials
• Resinoid bond provides shock resistance and smooth grinding action during wet operation
• 100 grit fine grade with soft hardness code R for controlled material removal without excessive wheel loading
• Type 1A1 straight wheel profile with no recess for direct spindle mounting on standard surface grinders
• 1/4 inch superabrasive depth extends usable wheel life through repeated dressing cycles
• Wet operation design helps manage heat, extend abrasive life, and maintain workpiece dimensional tolerances

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for surface grinders equipped with a 1-1/4 inch arbor spindle accepting Type 1A1 straight wheels up to 4 inches in diameter.

Installation Notes

A licensed machinist or qualified grinding technician should mount and dress this wheel. Before mounting, inspect the wheel for cracks or chips and perform a ring test per ANSI B7.1 standards. Power down and lock out the grinder before changing wheels. Never exceed the wheel speed rating marked on the wheel or packaging, and always use the appropriate flanges and blotter pads when mounting.