| O-Ringe 08050220.2 | Seilerei Pflug | CC BY-SA 3.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
| Oilseal 01 | Miya.m | CC BY-SA 3.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
| Ball bearing | Solaris2006 | CC BY-SA 3.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
| Schmiernippel01 | Markus Schweiss | CC BY-SA 3.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
| Multiple-V-belt drive 001 | Three-quarter-ten | CC BY-SA 3.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
| CNC milling machine | Impressionmanufacturer | CC BY-SA 4.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
| Hydraulic press brake's cylinder | Márton Kiss-Albert | CC BY-SA 3.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
| Hydraulikzylinder Kran grau | Deckenpappe2023 | CC BY-SA 4.0 | Wikimedia Commons | Resized, cropped for layout and converted to WebP. |
