Screw M5×12 螺钉

Retainer Ring φ40 轴用弹性挡圈

Shaft 链条滚轮轴

Washer 滚轮垫圈

Chain Roller 链条滚轮

Chain Bracket 链轮架

Screw M12×30 螺钉

Lockwasher φ12 弹垫

Flatwasher φ12 平垫

Screw M8×20 螺钉