Norton 69014192764 Surface Grinding Wheel 220 Grit 6 in

Product Description

The NORTON 69014192764 is a Type 1A1 surface grinding wheel built for precision finishing work. It uses a synthetic diamond abrasive bonded in a resinoid matrix, delivering consistent stock removal and a very fine surface finish on hard and brittle materials. The wheel measures 6 inches in diameter, 0.25 inches thick, with a 1.25-inch arbor hole and weighs 1.2 pounds. Rated at 220 grit with a very fine grade and a soft hardness rating (hardness code R), it is suited for fine finishing passes rather than aggressive material removal. Machinists, tool grinders, and surface grinding specialists are the primary users.

This wheel is designed for surface grinding applications requiring a fine finish, particularly during the finishing stage of material processing. The synthetic diamond abrasive makes it appropriate for hard, brittle workpieces such as carbide, ceramics, glass, and hardened tool steels. It supports both wet and dry operation, giving the technician flexibility depending on the machine setup and material being ground. The wheel carries the Norton Diamond series designation with a full specification code of SD220-R100B99-1/4, indicating 220 grit, R hardness, 100 concentration, resinoid bond, and a 0.25-inch superabrasive depth.

Key Features

• Type 1A1 flat wheel geometry with no recess and no taper — fits standard surface grinding spindles
• Synthetic diamond abrasive (SD) at 100 concentration for consistent, uniform cutting action
• 220 grit very fine grade produces smooth surface finishes with minimal subsurface damage
• Resinoid bond provides moderate resilience and self-dressing behavior during use
• Supports wet and dry operation — compatible with coolant flood or dry grinding setups
• Soft hardness rating (R) promotes freecutting action on difficult-to-grind materials

Compatibility

Designed as an OEM-style replacement or direct-use grinding wheel for surface grinders accepting a 6-inch diameter Type 1A1 wheel with a 1.25-inch arbor hole. Intended for finishing applications on hard and brittle materials.

Installation Notes

Grinding wheel mounting should be performed by a qualified machinist or tool room technician following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Power down and lock out the grinder before mounting or removing any wheel. Always perform a ring test prior to mounting and run the wheel at operating speed with the guard in place for at least one minute before introducing it to the workpiece. Do not exceed the maximum operating speed marked on the wheel.