Bearings
Created today
Description
A standalone print-in-place ball bearing inside a 22x22mm square housing.
Designed originally to mount axles on a scratch-built mousetrap car chassis, the housing is completely flat on the back so you can glue or strap it exactly where you need it. Inside, the inner ring rides on twelve captured micro-spheres, keeping friction low without requiring external hardware.
Tuning hooks
- Clearances: The internal track has a 0.4mm clearance gap. If your printer fuses them, try dropping the flow rate slightly.
- Axle bore: The center hole is 4mm — size it up to fit standard 1/4" or 6mm dowels if you're building heavier.
- Mounting: The 22x22mm block has plenty of meat around the edges if you want to drill through for M3 bolts.
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