Open hamster wheel

You need an 608ZZ bearing. The model contains three bearing pins of different sizes to cope with the possible errors caused by different printers. After printing, you can choose according to the actual matching situation. 需要一枚608ZZ轴承。模型中包含了三个不同尺寸的轴承插销，以应对不同打印机可能产生的误差。打印好后根据实际匹配情况选择即可。