Norton 66252941022 Surface Grinding Wheel 7in 46 Grit

Product Description

The NORTON 66252941022 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. Built on a vitrified bond with white aluminum oxide abrasive, this wheel carries a 46 grit, coarse grade, G hardness rating — a combination that delivers aggressive cutting action while maintaining a semi-friable structure that self-dresses during operation. The wheel measures 7 inches in diameter, 1/2 inch thick, and features a 1-1/4 inch arbor hole. It is rated to a maximum of 3600 RPM. Licensed grinding machine operators and tool room technicians are the primary installers of this wheel.

This wheel is suited for wet-operation surface grinding in both tool room and production environments. Its Series 38A Type 1 specification (38A46-GVBE) makes it a recognized choice for CNC cutting tool machines, cylindrical grinders, and surface grinders. Applications include finish and rough grinding of soft carbon steels, tool steels, and super alloys where a balance of cut rate and wheel life is needed. The non-porous, non-recessed, non-tapered design fits standard surface grinder spindles without modification.

Key Features

• White aluminum oxide abrasive for use on carbon steels, tool steels, and super alloys
• 46 grit coarse grade with G hardness code for aggressive, controlled material removal
• Vitrified bond construction with semi-friable grain for consistent self-dressing action
• Rated for wet operation — compatible with standard grinding coolant systems
• Series specification 38A46-GVBE for straightforward cross-referencing and replacement ordering
• Type 1 flat wheel profile with no recess and no taper fits standard arbor mounting

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders requiring a 7-inch diameter, 1-1/4 inch arbor hole, Type 1 wheel rated at 3600 RPM maximum.

Installation Notes

Grinding wheel mounting must be performed by a qualified operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the wheel's maximum RPM rating. Guard clearances and flange conditions should be verified before returning the machine to service.