Norton 69014192325 Surface Grinding Wheel 120 Grit 20 in

Product Description

The NORTON 69014192325 is a Type 1A1 diamond surface grinding wheel designed for wet roughing and cut-off operations on hard materials. It measures 20 inches in diameter, 1 inch thick, with a 12-inch hole size, and carries a 120 grit Fine grade for controlled material removal. The abrasive section uses Armored Synthetic Diamond (ASD) with a superabrasive depth of 0.25 inches and a concentration rating of 75. The resinoid bond provides consistent performance under wet operating conditions. This wheel is part of the Norton ASD series and is used by machinists and surface grinding professionals in production and toolroom environments.

This wheel is suited for surface grinding applications requiring a fine grit finish on hard or brittle workpieces. The Type 1A1 flat wheel profile fits horizontal spindle surface grinders configured for large-diameter tooling. With a 12-inch arbor hole, it is intended for heavy-duty machine spindles common in industrial production settings. The wet operation designation means it is designed to run with coolant, which aids chip evacuation and prolongs wheel life during roughing and cut-off work.

Key Features

• Armored Synthetic Diamond (ASD) abrasive for cutting hard and brittle materials
• 120 grit Fine grade for controlled stock removal with a refined surface finish
• Resinoid bond optimized for wet grinding operation with coolant
• Type 1A1 flat wheel geometry with no recess and no taper
• Superabrasive concentration of 75 and depth of 0.25 inches for consistent abrasive exposure
• Soft hardness rating (R) reduces loading on difficult-to-grind materials

Compatibility

Designed for use on horizontal spindle surface grinders accepting a Type 1A1 flat wheel with a 20-inch diameter and 12-inch arbor hole. Specification code ASD120-R75B99-1/4 identifies the abrasive, grit, hardness, concentration, bond, and superabrasive depth for machine and application matching.

Installation Notes

Installation should be performed by a qualified machinist or grinding specialist following the machine manufacturer's mounting instructions and applicable ANSI B11 safety standards for abrasive wheels. Always power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or damage before mounting, and never exceed the maximum operating speed marked on the wheel. Confirm coolant flow is established before beginning wet grinding operations.