crankshaft connecting rod model DIY production

2A flexible soft bushing 2mm 1.95mm plastic shaft seal axle washer Spindle Sleeve

aluminum coupling 5mm to 8mm coupler shaft rod blue CNC 3D printer motor coupling

3x5 Metal steering universal joint coupling cross universal coupler

3D Printer CNC Linear Bearing Slider Shaft SC8 SC8 SCS8UU

Big L type shelf angle bracket hook mount bracket

4mm Shaft Hexagon Motor Coupler Coupling wheel tyre tire mount brass