Norton 61463650442 Surface Grinding Segment 46 Grit

Product Description

The NORTON 61463650442 is a vitrified bond surface grinding segment designed for precision stock removal on horizontal and vertical spindle surface grinders. Measuring 11.25 inches wide, 6 inches high, and 2.25 inches thick, this segment uses aluminum oxide abrasive at a coarse 46 grit with a hardness code of D and grain structure 12. The open, porous structure of the vitrified bond promotes coolant flow and chip clearance, reducing heat buildup during extended grinding passes. It is installed and dressed by grinding machine operators and maintenance machinists working in production or tool-room environments.

This segment is suited for surface grinding applications requiring aggressive material removal on ferrous metals. The coarse 46 grit rating makes it appropriate for initial stock removal passes rather than finish grinding. It is referenced to blueprint ME30777 and carries the specification designation 86A46-D12VBEP, which encodes the abrasive type, grit, hardness, structure, and bond in standard grinding wheel nomenclature. Typical use is in segmented-wheel surface grinder heads where multiple segments are mounted in a chuck or holder assembly.

Key Features

• Aluminum oxide abrasive for use on ferrous metals and general-purpose surface grinding
• Coarse 46 grit for high stock removal rates
• Vitrified bond with porous grain structure (structure 12) for open cutting action and coolant penetration
• Hardness code D provides a soft-acting grade that releases worn abrasive grains readily
• Specification 86A46-D12VBEP for straightforward cross-reference and reorder
• Blueprint reference ME30777 for OEM and production applications requiring documented part traceability

Compatibility

Referenced to application designation Cortland and blueprint ME30777. Designed as a segmented surface grinding wheel component for horizontal or vertical spindle surface grinders that accept segments measuring 11.25 inches wide, 6 inches high, and 2.25 inches thick.

Installation Notes

Surface grinding segments must be mounted, trued, and dressed by qualified machine operators or maintenance personnel familiar with ANSI B7.1 safety requirements for abrasive wheels. Always power down and lock out the grinder before removing or installing segments. Inspect each segment for cracks or chips before mounting. Never exceed the maximum operating speed rated for the segment assembly.