Norton 66260273609 Surface Grinding Wheel 150 Grit 6in

Product Description

The NORTON 66260273609 is a Type 1A1 surface grinding wheel engineered for precision material removal and finishing on hard materials. It uses Armored Synthetic Diamond (ASD) abrasive bonded in a resinoid matrix, delivering consistent cut rates across both wet and dry operations. At 150 grit, the wheel falls in the very fine grade range, making it well suited for applications that require both roughing and finishing in a single setup. The specification designation ASD150-R75B99-1/4 identifies the abrasive type, grit, hardness, concentration, bond, and superabrasive depth. Licensed tradespeople and toolroom machinists working with carbide, ceramics, and other superhard materials will find this wheel a reliable production tool.

This wheel is designed for surface grinding operations on bench grinders, surface grinders, and compatible rotary grinding machines that accept a 1-1/4 inch arbor bore. It is appropriate for both roughing stock removal and finish-pass work on hard and superhard workpieces including cemented carbide tooling, ceramic components, and hardened steel. The no-recess, flat-face Type 1A1 form fits standard surface grinding machine spindles. Both wet coolant and dry grinding setups are supported by the resinoid bond system.

Key Features

• Armored Synthetic Diamond (ASD) abrasive for extended wheel life on superhard materials
• 150 grit very fine grade supports roughing and finishing in a single wheel
• Resinoid bond provides consistent stock removal with good form retention
• Supports wet and dry operation for flexibility across shop environments
• Soft hardness rating (R) and 75 concentration for controlled, free-cutting action
• No-recess Type 1A1 flat form fits standard surface grinder spindles

Compatibility

Designed as a direct-fit replacement or production wheel for surface grinders and bench grinding machines with a 1-1/4 inch arbor bore accepting a Type 1A1 straight wheel form. Consult machine manufacturer specifications to confirm maximum operating speed before mounting.

Installation Notes

Mounting and dressing of superabrasive grinding wheels should be performed by a qualified toolroom technician or machinist following ANSI B7.1 safety standards. Power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips before mounting and perform a ring test according to applicable safety codes. Never exceed the maximum RPM marked on the wheel or stated in the machine documentation.