Free Keyway Gear Generator | DIN & ANSI Drive Shaft Keyways

Eliminate shaft slippage under high torque loads. Standard set screws often slip on smooth motor shafts. GearDXF allows you to add precision drive keyways (DIN 6885, ANSI B17.1) directly into the center bore of any gear before exporting to DXF for laser cutting, CNC wire EDM, or milling.

Key Features

• Configurable keyway width and height for standard square and rectangular keys
• Supports standard metric keyways (2mm up to 12mm+) and imperial ANSI keys
• Seamless boolean union with the center shaft bore for zero-error CAM import
• Custom bore sizing from 3mm precision motor shafts to large industrial drives
• Real-time visualization of keyway orientation relative to tooth root positions
• Free with unlimited DXF and SVG exports

Frequently Asked Questions

What standard keyway dimensions should I use for a 12mm shaft?

According to DIN 6885-1, a 12mm shaft uses a 4mm wide key with a total hub keyway depth of 1.8mm above the bore diameter.

Can a laser cutter cut an internal keyway with sharp corners?

Yes! Laser cutters, wire EDM machines, and waterjets have very small beam/wire diameters and can cut sharp 90-degree internal keyway corners effortlessly.

How do I cut a keyway on a CNC router?

Because rotary milling tools leave a rounded inside corner, you can add small relief "dogbones" in CAD or use a manual keyway broach after milling the round bore.