CNBTR Horizontal Linear Motion Ball Bearing Slide Bushing 8mm Dia &Shaft Optical Axis 300mm Linear with Rod Rail Support Set: Amazon.com: Industrial & Scientific
Amazon.com: 1/4" Diameter, 6061 Aluminum Round Rod, 8 Inch Length, T6511, Extruded, 0.25 inch Dia : Industrial & Scientific
B&T Metall Aluminium Rundstange Rund Ø 18 mm gepresst Länge ca. 50 cm (500 mm +/- 5 mm) : Amazon.de: Gewerbe, Industrie & Wissenschaft
B&T Metall Aluminium Rundstange Rund Ø 60 mm gepresst Länge ca. 10 cm (100 mm +/- 5 mm) : Amazon.de: Gewerbe, Industrie & Wissenschaft