Norton 66253246947 Centerless Grinding Wheel 16in Aluminum Oxide

Product Description

The NORTON 66253246947 is a Type 1 centerless cylindrical grinding wheel designed for precision outside-diameter grinding operations. Built with aluminum oxide abrasive bonded in a vitrified matrix, this wheel carries a medium-grade, 60-grit specification rated at 2030 RPM maximum. At 16 inches in diameter, 1.5 inches wide, and with a 5-inch arbor hole, it suits production grinding applications where consistent stock removal and surface finish are required. The vitrified bond offers rigidity and porosity control, making it well-suited for ferrous metals and tool steels. Licensed machinists and grinding machine operators are the typical installers and operators of this wheel.

This wheel is used in centerless grinding setups found in manufacturing and machine shop environments, both in production and job-shop settings. It is configured as a grinding wheel for regulating or work-rest blade setups on centerless grinders handling round stock, shafts, pins, and similar cylindrical workpieces. The 57A60L-V18 specification indicates an aluminum oxide abrasive composition, L-hardness rating, and vitrified bond type, making it appropriate for medium-pressure precision grinding on steel and similar ferrous materials.

Key Features

• Aluminum oxide abrasive for effective stock removal on ferrous metals and alloy steels
• Vitrified bond provides wheel rigidity and dimensional stability under grinding loads
• 60 grit, medium grade (L hardness) for balanced material removal and surface finish
• Type 1 flat wheel profile with no recess, compatible with standard centerless grinder flanges
• Rated to 2030 RPM maximum for safe operation on appropriate centerless grinding machines
• Non-porous construction for consistent grinding performance across the wheel face

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for centerless cylindrical grinding machines accepting a Type 1 wheel with a 16-inch diameter, 1.5-inch width, and 5-inch arbor hole. Specification 57A60L-V18 is the manufacturer grinding wheel spec code for this wheel.

Installation Notes

Grinding wheel installation must be performed by a qualified machinist or grinding machine operator following ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips before mounting and perform a ring test prior to installation. Machine must be at a full stop and locked out before mounting or removing the wheel. Never exceed the maximum rated RPM of 2030 under any operating condition.