Norton 66253344347 Surface Grinding Wheel 8in 14 Grit

Product Description

The NORTON 66253344347 is a Type 1 surface grinding wheel designed for aggressive material removal on hard and stainless steel alloys. Built around a zirconia alumina abrasive with a resinoid bond, this wheel runs at a maximum of 6000 RPM and carries a very coarse 14 grit rating with an R hardness code. At 8 inches in diameter and 3/4 inches thick, it delivers a wide contact surface suited to flat grinding operations. The semi-friable grain structure allows continuous self-sharpening during cuts, reducing heat buildup and extending wheel life. It weighs 4.05 pounds and belongs to the NORTON BlueFire 4NV series, also identified by the BLUEFIRE 14-S specification designation.

This wheel is rated for use on an ID grinder and is engineered for grinding 300 Series stainless steel, 400 Series stainless steel, hard carbon steels, soft carbon steels, tool steels, titanium, and super alloys. It is a non-porous, non-tapered, non-recessed wheel finished in black. The 5/8 inch arbor hole fits standard spindle configurations found on bench and surface grinders used in machine shops, fabrication facilities, and maintenance environments where high-stock-removal passes on hard ferrous and exotic materials are routine.

Key Features

• Zirconia alumina abrasive for high-performance grinding on ferrous and exotic alloys
• Very coarse 14 grit with R hardness code delivers aggressive stock removal
• Semi-friable grain continuously self-sharpens to reduce glazing and heat
• Resinoid bond provides vibration dampening and controlled wheel breakdown
• Rated to 6000 RPM for safe operation on compatible ID grinders
• Non-porous, non-recessed Type 1 profile for consistent flat grinding contact

Compatibility

Designed for use with ID grinders. Rated for 300 Series stainless steel, 400 Series stainless steel, hard carbon steels, soft carbon steels, tool steels, titanium, and super alloys. Part of the NORTON BlueFire 4NV series.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or toolroom technician. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before each use and perform a ring test per ANSI B7.1 standards. Verify that the grinder spindle speed does not exceed the 6000 RPM maximum rating marked on this wheel.