4PCS Linear Motion Ball Bearing Slide Block Bushing SC6UU SCS8UU SC10UU SCS12UU 16UU 20UU Linear Shaft CNC 3D Printer Parts Linear bearing slide bushing is widely used in printing machinery, electronic equipment, food machinery, packaging machinery, medical machinery, textile machinery, equipment, robots, tools, machinery, machine tools, automotive and other precision equipment or special machinery industry. Model:SC6UU SC8UU SC10UU SC12UU SC16UU SC20UU Packing list 4 x Sliding Block Note: Please allow minor error due to manual measurement. Thank you! Due to the difference between different monitors, the picture may not reflect the actual color of the item.