Norton 66253044177 Surface Grinding Wheel 46 Grit 8 in

Product Description

The NORTON 66253044177 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. Built on an aluminum oxide abrasive with a vitrified bond, this wheel operates at a maximum of 3105 RPM and carries a coarse, 46-grit cutting action suited to aggressive material removal. At 8 inches in diameter, 3/4 inches thick, and bored to a 1-1/4 inch hole, it mounts directly to standard surface grinder and cylindrical grinder spindles. The hardness code I rating and semi-friable grain structure allow the wheel to self-dress at a controlled rate, maintaining a sharp cutting face throughout the grind cycle.

This wheel is rated for wet operation, making it compatible with coolant-fed surface grinders and CNC cutting tool machines where heat management is critical. The 38A series Type 1 profile — flat, no recess, non-tapered — is the standard configuration for horizontal-spindle surface grinding applications found in tool rooms, maintenance shops, and production environments. Material applications include soft carbon steels, tool steels, and super alloys, covering a broad range of general-purpose and precision toolroom work. The white aluminum oxide grain and vitrified bond combination delivers consistent cutting performance across the full wheel life.

Key Features

• Type 1 flat wheel profile — no recess, no taper — fits horizontal-spindle surface grinders
• 46-grit coarse grade for aggressive stock removal on steel and alloy workpieces
• Aluminum oxide abrasive with vitrified bond provides a rigid, free-cutting structure
• Semi-friable grain fractures during use to expose fresh cutting edges
• Wet-operation rated for use with grinding coolant systems
• 38A46-IVBE specification for straightforward cross-reference and replacement ordering

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders as stated in product specifications. The 1-1/4 inch hole and Type 1 form factor are standard for horizontal-spindle surface grinding setups. Material applications include soft carbon steels, tool steels, and super alloys.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding machine operator following ANSI B11.9 and the machine manufacturer's safe operating procedures. Before mounting, inspect the wheel for cracks using a ring test and confirm spindle speed does not exceed the 3105 RPM maximum marked on the wheel. Always power down and lock out the machine before changing wheels. Use flanges and blotters appropriate to the wheel diameter and arbor bore; never force the wheel onto the spindle.