Found 2 3D-models for “12mm ball bearings” across many websites

#thrust bearing#spinner#12mm#r188 bearing#PLA#wheel#dowel#bearings#Cap for R188 Bearing#aluminum
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R188 Spinner 12mm balls Remix

R188 Spinner 12mm balls Remix

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Ball Bearing Hub for Vertical Tube

Ball Bearing Hub for Vertical Tube

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