3D printer accessories linear bearing sliding block box bearing SC8UU. 
SC8UU 8mm Aluminum Linear Motion Ball Bearing Slide Bushing For CNC. 
 
Features : 
The universal Ball Bearings is great for you to replace the damaged Ball Bearings in your devices to improve them efficiency and save energy.
Widely used in home appliances, industrial, low noise and high speed electric motors, construction machinery, automotive components, pumps, and machinery. Smooth moving, low friction, high rigidity and long life. Economical, easy to maintain replace.
 
Specification : 
Model : SC8UU
Material : Steel, Aluminum
Size : Approx. 34 x 30 x 22mm
Inner Diameter : Approx. 8mm
Weight: 46g