Tru-maxx T5-8W33939-T Surface Grinding Wheel 60 Grit

Product Description

The TRU-MAXX T5-8W33939-T is a Type 5 surface grinding wheel designed for use on surface grinders in industrial and shop environments. Constructed from aluminum oxide abrasive with a vitrified bond, this wheel delivers consistent stock removal on ferrous metals and tool steels. It measures 8 inches in diameter, 1 inch thick, with a 1-1/4 inch arbor hole and a one-side recess of 3-1/4 inches in diameter. At 60 grit and K hardness grade, it falls in the medium range, balancing cut rate with surface finish. Maximum rated speed is 3,600 RPM. Weighing 4 pounds, it is suited for bench or reciprocating surface grinder spindles.

This wheel is intended for surface grinding operations in machine shops, tool rooms, and maintenance facilities. The aluminum oxide abrasive and vitrified bond construction make it appropriate for grinding carbon steel, alloy steel, and similar ferrous materials. The one-side recessed Type 5 configuration fits specific surface grinder spindle setups where clearance or coolant flow recessing is required. Machinists, toolmakers, and industrial maintenance technicians are the primary installers and operators.

Key Features

• Type 5 one-side recessed profile with a 3-1/4 inch recess diameter for compatible spindle fitment
• Aluminum oxide abrasive — semi-friable construction for controlled breakdown and consistent cut
• Vitrified bond provides rigidity and thermal stability during surface grinding passes
• 60 grit medium grade balances material removal rate with acceptable surface finish
• K hardness rating suits moderate grinding pressure applications on ferrous workpieces
• 3,600 RPM maximum rated speed — verify wheel RPM rating meets or exceeds grinder spindle speed before mounting

Compatibility

Designed as an OEM-style replacement or direct-fit wheel for surface grinders accepting a Type 5 wheel with an 8 inch diameter, 1-1/4 inch arbor hole, and one-side recess configuration.

Installation Notes

Surface grinding wheels must be installed by qualified personnel familiar with ANSI B7.1 safety standards for abrasive wheels. Before mounting, perform a ring test to check for cracks, and confirm the grinder spindle speed does not exceed the 3,600 RPM wheel rating. Power down and lock out the grinder before changing wheels. Never exceed the rated maximum RPM, and always use the appropriate flanges and blotters supplied or specified by the grinder manufacturer.