Norton 66253043861 Surface Grinding Wheel 8in 60 Grit

Product Description

The NORTON 66253043861 is a Type 1 surface grinding wheel designed for precision stock removal and surface finishing on stationary grinding equipment. Built from white aluminum oxide abrasive with a vitrified bond, this wheel delivers consistent, controllable cut rates on a range of metallic workpiece materials. It measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole, and carries a 60 grit, K hardness (medium grade) rating. The semi-friable aluminum oxide grain self-sharpens under load, helping maintain cut efficiency between dressing cycles. Maximum operating speed is rated at 3600 RPM.

This wheel is suited for surface grinding and cylindrical grinding applications in job shop, tool room, and CNC machining environments. It is appropriate for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. Recommended material applications include soft carbon steels, tool steels, and super alloys. The medium grade and 60 grit combination makes it a practical choice for intermediate material removal where surface finish control is also a priority.

Key Features

• White aluminum oxide abrasive grain for controlled cutting action on steels and alloys
• Vitrified bond provides rigidity and consistent wheel form retention
• Semi-friable grain structure promotes self-sharpening during grinding
• 60 grit medium hardness (K) rating balances stock removal with surface finish
• Type 1 straight wheel profile with no recess, compatible with standard surface and cylindrical grinder spindles
• Rated to 3600 RPM maximum operating speed

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys. Series designation 38A Type 1; wheel specification 38A60-KVBE.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding machine operator following ANSI B11.9 and OSHA 29 CFR 1910.215 safety standards. Always ring-test the wheel for cracks before mounting and never exceed the rated maximum RPM of 3600. Power down and lock out the grinder before changing wheels. Use the correct flange size and blotters as specified by the machine manufacturer.