Tru-maxx 66253255401 Surface Grinding Wheel 46 Grit 7 in

Product Description

The TRU-MAXX 66253255401 is a Type 1 surface grinding wheel engineered for precision stock removal on surface grinders in industrial and metalworking environments. The wheel measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. It uses a ceramic abrasive grain bonded with a vitrified bond, rated at 46 grit for coarse-grade material removal. The K hardness code indicates a medium hardness rating, balancing grain retention and controlled breakdown. Maximum operating speed is 3600 RPM. This wheel is installed by machinists, tool and die technicians, and maintenance professionals performing flat surface grinding operations on ferrous and hard alloy workpieces.

This wheel is suited for surface grinding applications where aggressive stock removal and consistent finish are required on horizontal spindle surface grinders. The coarse 46-grit ceramic grain structure is effective on hardened steels and difficult-to-grind materials. The vitrified bond provides rigidity and porosity control, contributing to stable performance across production and jobshop surface grinding cycles. The non-porous construction and blue wheel color are consistent with standard-specification industrial surface grinding wheels used in maintenance, repair, and manufacturing operations.

Key Features

• Type 1 straight wheel profile for horizontal spindle surface grinders
• Ceramic abrasive grain for aggressive, consistent stock removal on hard materials
• Vitrified bond for rigid, stable performance and good form retention
• 46 grit coarse grade suited for rapid material removal applications
• K hardness (medium) balances grain hold and controlled wheel breakdown
• 3600 RPM maximum operating speed

Compatibility

Designed as a standard Type 1 replacement surface grinding wheel for horizontal spindle surface grinders accepting a 7-inch diameter, 1/2-inch thick wheel with a 1-1/4 inch arbor hole.

Installation Notes

Surface grinding wheels must be mounted and dressed by qualified personnel familiar with ANSI B7.1 safe use standards for abrasive wheels. Always power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before installation and perform a ring test. Never exceed the 3600 RPM maximum operating speed marked on the wheel.