December 11, 2018
Description
This is a ball bearing for filament spools. The outside diameter is 57 mm, the inside diameter is 8 mm. Please prepare BB bullet separately for the ball.
The inner frame is divided into two. Inside the outer frame, insert the higher frame inside, Fill the BB bullets and fit the lower inner frame.
※ This explanation translated Japanese into English by Google translation.
License:
Creative Commons - Attribution
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