Norton 66253364102 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253364102 is a Type 5 surface grinding wheel engineered for demanding material removal on ferrous metals and exotic alloys. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent cutting action and thermal resistance across extended grinding cycles. At 14 inches in diameter and 1.5 inches thick, with a 5-inch arbor hole, it mounts to standard surface and cylindrical grinders. The 46 grit, coarse grade removes stock aggressively, while the I hardness (medium) rating and semi-friable grain structure allow the wheel to self-dress under load, maintaining sharp cutting edges. Maximum operating speed is 1800 RPM. Weight is 15.89 pounds.

This wheel is suited for precision surface grinding and cylindrical grinding applications in production and toolroom environments. It performs on 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The one-side recessed profile (Type 5) provides clearance for the grinding spindle hub, making it a common choice for surface grinder setups where flange clearance is a factor. It is appropriate for both industrial production shops and maintenance operations where aggressive stock removal on hard-to-grind materials is required.

Key Features

• Ceramic abrasive grain with semi-friable structure for self-dressing behavior and consistent cut rate
• Vitrified bond provides rigidity, porosity, and heat resistance during heavy surface grinding
• 46 grit coarse grade for aggressive stock removal on hard ferrous and exotic alloy workpieces
• Type 5 one-side recessed profile (8-inch recess diameter, 0.5-inch recess depth) for spindle hub clearance
• I hardness medium rating balances wheel wear against material hardness across a broad workpiece range
• Rated to 1800 RPM maximum operating speed

Compatibility

Designed for use with surface grinders and cylindrical grinders. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Series designation 5SG Type 5 with specification 5SG46-IVS.

Installation Notes

Installation should be performed by a qualified grinding machine operator or maintenance technician familiar with abrasive wheel safety. Before mounting, inspect the wheel for cracks or damage using the ring test per ANSI B7.1 standards, and ensure the machine is fully de-energized and locked out. Never exceed the marked maximum RPM of 1800. Use proper flanges and a blotter on each side of the wheel, and allow the wheel to run at operating speed in a guarded area for at least one minute before presenting work.