Norton 66253043461 Surface Grinding Wheel 80 Grit 8 in

Product Description

The NORTON 66253043461 is a Type 1 surface grinding wheel designed for precision material removal on soft carbon steels, tool steels, and super alloys. Built on a vitrified bond with aluminum oxide abrasive, it delivers consistent cutting action and good form retention across multiple passes. The wheel measures 8 inches in diameter and 1/4 inches thick, with a 1-1/4 inches arbor hole for standard spindle mounting. Rated at a maximum of 3600 RPM and spec-coded 38A80-KVBE, this wheel is suited for installation by machinists and grinding technicians working with surface grinders and cylindrical grinders in production and tool-room environments.

This wheel is appropriate for surface grinding applications in both job-shop and production settings. Its medium grade and K hardness code make it effective on softer ferrous materials where wheel breakdown rate needs to match workpiece hardness. Compatible equipment includes surface grinders, cylindrical grinders, and CNC cutting tool machines. The non-porous, semi-friable aluminum oxide grain continuously self-sharpens under load, helping maintain cutting efficiency over the wheel's service life.

Key Features

• Aluminum oxide abrasive with semi-friable grain for consistent self-sharpening action
• Vitrified bond provides rigid form holding and efficient coolant flow
• 80 grit medium grade suited for stock removal on soft carbon steels and tool steels
• K hardness code balances wheel life and cutting aggressiveness
• Non-tapered, no-recess Type 1 flat wheel geometry for standard surface and cylindrical grinding setups
• Maximum spindle speed rating of 3600 RPM

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys. Arbor hole size of 1-1/4 inches fits standard spindle configurations for 8-inch Type 1 wheels.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or grinding technician. Before mounting, inspect the wheel for cracks or chips using a ring test per ANSI B7.1 guidelines, and never exceed the marked maximum RPM of 3600. Ensure the machine spindle is fully stopped and locked out before changing wheels. Use proper flanges and a compressible blotter between the flanges and wheel faces to distribute clamping load evenly.