Tru-maxx 66253269794 Type 11 Grinding Wheel 5 in 60 Grit

Product Description

The TRU-MAXX 66253269794 is a Type 11 flaring cup grinding wheel engineered for surface grinding and tool sharpening applications. The abrasive material is silicon carbide with a vitrified bond, making it well-suited for grinding hard, brittle materials such as carbite tools, ceramics, and cast iron. The wheel carries a 60 grit, medium grade designation with a hardness code of I, balancing stock removal speed with surface finish quality. Rated to a maximum of 4,585 RPM, it is sized at 5 inches in diameter with a 1-3/4 inch overall thickness and a 3-3/4 inch hub diameter. Installed by machinists, tool-and-die technicians, and maintenance trades on compatible bench or pedestal grinders.

This wheel is intended for bench and pedestal grinder use in tool sharpening, deburring, and precision surface grinding operations. The Type 11 cup form presents the abrasive face along the rim, which is appropriate for grinding drill bits, lathe tools, and similar cutting tools requiring flat or slightly contoured relief faces. The green silicon carbide composition and non-porous, vitrified bond structure deliver consistent material removal on hard substrates. It is a single-piece wheel sold in individual quantity.

Key Features

• Silicon carbide abrasive with vitrified bond for hard, brittle material grinding
• Type 11 flaring cup profile optimized for tool sharpening and flat face grinding
• 60 grit medium grade with I hardness code for balanced stock removal and finish
• Maximum rated speed of 4,585 RPM for standard bench and pedestal grinder spindles
• Non-porous wheel construction resists loading on dense materials
• Green wheel color identifies silicon carbide composition for quick visual verification

Compatibility

Designed as a replacement-style Type 11 cup grinding wheel for bench and pedestal grinders accepting a 1-1/4 inch hole arbor. Verify spindle speed rating and arbor size on the host machine before installation.

Installation Notes

Installation should be performed by a qualified technician familiar with abrasive wheel safety requirements. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before mounting and perform a ring test per ANSI B7.1 guidelines. Never exceed the maximum RPM marked on the wheel or stated in documentation, and ensure the machine spindle speed rating does not exceed 4,585 RPM for this wheel.