Norton 66243530240 Type 11 Grinding Wheel 4in 46 Grit

Product Description

The NORTON 66243530240 is a Type 11 flaring cup grinding wheel built for tool grinding and surface grinding applications in professional shop environments. Constructed from aluminum oxide abrasive with a vitrified bond, this wheel delivers consistent stock removal on ferrous metals and tool steel. It runs at a maximum of 5,730 RPM and carries a medium hardness rating (Hardness Code I), making it well-suited for controlled material removal without excessive wheel wear. The specification designation is 32A46-IVBE. At 0.804 pounds, the wheel is compact and designed to mount on bench grinders or tool and cutter grinders. Licensed trades and skilled machinists are the primary installers and operators of this wheel.

This grinding wheel is used in tool rooms, maintenance shops, and manufacturing environments where precision grinding of cutting tools, drill bits, and similar workpieces is required. The Type 11 cup shape provides a large contact face for grinding relief angles and flat surfaces on tooling. The 46-grit aluminum oxide abrasive is appropriate for coarse-to-medium material removal on carbon steel, alloy steel, and hardened tool steel. It is a single-unit item suited for both production grinding and maintenance sharpening tasks.

Key Features

• Type 11 flaring cup geometry for tool and surface grinding applications
• 46-grit aluminum oxide abrasive with vitrified bond for consistent cut rate
• Medium hardness (Code I) balances wheel life and cutting efficiency
• Maximum operating speed of 5,730 RPM
• Non-porous construction for clean, controlled grinding action
• Specification designation 32A46-IVBE for cross-reference and replacement matching

Compatibility

Designed as an OEM-style replacement or standard-stock grinding wheel for bench grinders and tool and cutter grinders accepting a Type 11 cup wheel with a 1-1/4 inch arbor hole and operating within a 5,730 RPM maximum speed rating.

Installation Notes

Grinding wheel mounting and dressing should 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 the wheel. Inspect the wheel for cracks or chips before installation and perform a ring test as required by safety standards. Never exceed the maximum operating speed of 5,730 RPM stamped or labeled on the wheel.