
Gear Bearing. Spins from the build plate.
Your printer, running the way it should.
498k downloads in the maker community
$12.95
Printed in the USA when you order.
- 1.You order it
- 2.We print it fresh
- 3.It ships to you
- Spins straight off the printer. No assembly, no ball bearings.
- Planetary gears keep the rollers spaced. The teeth are the cage.
- Herringbone teeth resist axial walk. Better than spur teeth here.
- Parametric OpenSCAD source if you want a different size.
- Designer credit: emmett on Thingiverse, CC-BY-SA.
A bearing that comes off the printer already spinning. Plastic only. No steel balls, no separate pieces, no assembly.
The trick is the planetary gear set. Outer ring, sun gear, three planet gears. Herringbone teeth on the gears keep the rollers from walking out under axial load. The gears do double duty as the cage. It is a bearing type that can only be made by 3D printing.
Original design by emmett, licensed CC BY-SA for commercial print. About 8.0 g of PLA. Ships in 3 to 5 business days from our US printer network. Free reprint if it arrives flawed.
Will it fit? Check the numbers.
- Size
- 52 × 52 × 15 mmfits in your palm
- Material
- PLA, solid color
- Made
- In the USA, printed when you order
Sizes come from the real model file, not a guess.
Want a different size? Have your own design?
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