PROFESSIONAL SLIDE BLOCK- The ball bearing slide block is ideal for replacing the damaged slide block in appliances to improve efficiency and save energy. SIZE- 36 x 42 x 28mm/1.4 x 1.7 x 1.1(L*W*H); Inner Diameter: 12mm/0.47inch EXCELLENT PERFORMANCE- Industry standard sliding block, featuring high precision and high stability.Smooth movements, low friction, high rigidity and long service life. ALUMINUM SHELL- This slide unit has a closed type aluminum housing, a housing with a flat mounting face and four threaded bolt holes.Economical replacement, easy to maintain. APPLICATION- The bearing slide bearings linear are widely used in food, power tools, sports equipment, carpentry. Product Features: This sliding unit has a closed type aluminum enclosure, an enclosure with the flat mounting face and four tapped bolt holes. The Ball Bearing Sliding Block is ideal to replace the damaged one in your appliances to improve their efficiency and save energy. Linear bearing slip ring is widely used in food, power tools, sports equipment, carpentry Industrial standard slide block, high precision and high stability. Smooth moving, low friction, high rigidity and long service life. Economical, easy to maintain replacement. Specifications: Ball Bearing Model: SCS12UU Material: Aluminum, Steel Ball Inner Diameter: 12mm/0.47inch Overall Size: 36 x 42 x 28mm/1.4 x 1.7 x 1.1(L*W*H) Weight: 359g Package Included: 4 x Linear Motion Ball Bearing Slides