Cratex 40033 Surface Grinding Wheel 54 Grit Type 1

Product Description

The CRATEX 40033 is a Type 1 surface grinding wheel designed for material removal and surface conditioning on bench grinders and pedestal grinders. It measures 3 inches in diameter with a 1/4-inch thickness and a 1/4-inch arbor hole. The abrasive grain is aluminum oxide at 54 grit, placing it in the coarse grade range and making it well-suited for aggressive stock removal on ferrous metals and general shop grinding tasks. The wheel carries a hard hardness rating and is rated to a maximum of 18,080 RPM, meeting the demands of typical bench grinder spindle speeds.

This wheel fits standard bench and pedestal grinder setups found in machine shops, fabrication facilities, maintenance departments, and trade workshops. Its compact 3-inch diameter suits smaller bench grinders used for tool sharpening, deburring, and light surface reconditioning. The coarse 54-grit aluminum oxide construction handles carbon steel, alloy steel, and similar ferrous workpieces efficiently. Machinists, maintenance technicians, and fabricators are the primary installers and users of this wheel.

Key Features

• Type 1 straight wheel profile for use on bench and pedestal grinders
• Aluminum oxide abrasive grain rated for ferrous metal grinding
• Coarse 54-grit for aggressive stock removal and surface conditioning
• Hard wheel hardness rating for extended wear life on general grinding applications
• 18,080 RPM maximum speed rating for standard bench grinder compatibility
• No-recess design for straightforward mounting on standard arbors

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for bench grinders and pedestal grinders accepting a Type 1 straight wheel with a 3-inch diameter, 1/4-inch thickness, and 1/4-inch arbor hole.

Installation Notes

Grinding wheel installation and replacement should be performed by a qualified machinist or maintenance technician following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and de-energize the grinder completely before removing or mounting a wheel. Inspect the wheel for cracks or chips before mounting, and perform a ring test per ANSI guidelines. Never exceed the maximum rated RPM of the wheel or the grinder, whichever is lower.