Norton 66252942707 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252942707 is a Type 5 surface grinding wheel designed for stock removal on soft carbon steels, tool steels, and super alloys. It is constructed from white aluminum oxide abrasive in a vitrified bond matrix, giving it consistent cutting action and good porosity for coolant flow. The wheel measures 7 inches in diameter and 1 inch thick, with a 1-1/4 inch arbor hole and a one-side recess 3 inches in diameter by 1/2 inch deep. At 46 grit with an H hardness code (coarse, soft grade), it is rated for a maximum of 3600 RPM. Grinding professionals and tool room machinists install this wheel on compatible surface and cylindrical grinders.

This wheel is suited for use in surface grinding and cylindrical grinding operations on soft carbon steels, tool steels, and super alloys. The coarse 46-grit specification makes it appropriate for aggressive material removal rather than fine finish work. The Type 5 recessed profile reduces contact area on the wheel face, which can help manage heat generation during heavier cuts. It is a standard production and tool room wheel used in both job shop and manufacturing environments.

Key Features

• Aluminum oxide abrasive, white — semi-friable, self-sharpening for consistent cut on steels and super alloys
• Vitrified bond with open, porous structure for coolant retention and chip clearance
• 46 grit, H hardness (coarse grade, soft hardness rating) for aggressive stock removal
• Type 5 one-side recessed profile — 3-inch recess diameter, 1/2 inch deep
• 1-1/4 inch arbor hole fits standard surface and cylindrical grinder spindles
• Maximum rated speed of 3600 RPM

Compatibility

Designed for use with surface grinders and cylindrical grinders. Material applications listed by the manufacturer include soft carbon steels, tool steels, and super alloys. The wheel carries specification designation 38A46-HVBE.

Installation Notes

This wheel should be installed by a qualified grinding machine operator or maintenance technician familiar with abrasive wheel safety. Before mounting, inspect the wheel for cracks or chips using the ring test per ANSI B7.1 guidelines. Power down and lock out the grinder before changing wheels. Never exceed the 3600 RPM maximum speed rating marked on the wheel, and always use the correct flanges and blotters for the arbor size.