Norton 69078666748 Centerless Grinding Wheel 20in 60 Grit

Product Description

The NORTON 69078666748 is a Type 1 centerless cylindrical grinding wheel engineered for precision stock removal and finish grinding on cylindrical workpieces. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cutting action and thermal stability under sustained grinding loads. It carries a 60-grit medium grade rating and a Norton spec designation of 64A60-KVCE, indicating medium hardness (K) and a controlled structure for predictable wear. At 20 inches in diameter, 8 inches wide, and with a 12-inch hole, this is a large-format wheel suited for industrial centerless grinder setups. Licensed trades and grinding machine operators in metalworking and manufacturing facilities are the primary installers and users of this wheel.

This wheel is designed for centerless cylindrical grinding applications in industrial and manufacturing environments. The 60-grit aluminum oxide construction handles general-purpose ferrous metal grinding, including carbon steel, alloy steel, and similar materials where consistent material removal and surface finish are required. The vitrified bond structure provides rigidity during high-contact-area passes common in through-feed and in-feed centerless grinding operations. The gray, non-porous wheel body is rated to a maximum of 1625 RPM, a critical parameter for safe operation on compatible centerless grinding machines.

Key Features

• Aluminum oxide abrasive for reliable performance on ferrous metals
• Vitrified bond provides rigidity and thermal stability during sustained grinding
• 60-grit medium grade for balanced stock removal and surface finish
• Norton spec 64A60-KVCE with medium hardness (K) rating for controlled, predictable wear
• Non-porous wheel construction minimizes loading during continuous operation
• Maximum rated speed of 1625 RPM for safe use on compatible machines

Compatibility

Designed as an OEM-style replacement and standard fitment for industrial centerless cylindrical grinding machines accepting a Type 1 wheel with a 20-inch diameter, 8-inch width, and 12-inch arbor hole running at or below 1625 RPM.

Installation Notes

Grinding wheel mounting and dressing should be performed by qualified machine operators or maintenance personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or damage before mounting and perform a ring test prior to installation. Power down and lock out the grinding machine before removing or installing any wheel. Never exceed the maximum RPM stamped on the wheel or listed in the product specifications.