Descriptions: This slide unit has a closed type aluminum housing, a housing with the flat mounting face and four tapped bolt holes. Widely used in printing machinery,electronic equipment, food machinery, packaging machinery, medical machinery,textile machinery, machinery, equipment, robots, automotive and digital three-dimensional coordinate measuring equipment. Features: This slide unit has a closed type Aluminum housing, a housing with the flat mounting face and four tapped bolt holes. The ball bearing slide block is great for you to replace the damaged one in your devices to improve them efficiency and save energy. Linear bearing slide bushing is widely used in printing machinery,electronic equipment, food machinery, packaging machinery, medical machinery,textile machinery, machinery, equipment, robots,automotive and digital three-dimensional coordinate measuring equipment. Industrial standard slide block, features high accuracy, high stability. Smooth moving, low friction, high rigidity and long life. Economical, easy to maintain replace. Specifications: Material : aluminum, plastic stent, steel ball Model: SCS12LUU Inner Diameter: 12mm/0.4inch Outside diameter: 2.1cm/0.8incg Screw Hole Dia(Each): M5x12mm Overall Size: 7x4.2x3cm/2.7 x 1.8 x 1.6 inch Weight: 358g Package Included: 2 x Linear Motion Ball Bearing Slide Unit