Linear Motion Ball Bushing Sealed on Both SideChromium Steel shell and ball, good abrasion resistance, high precision and good strength moving, low friction, high rigidity and long working lifeSuitalbe for kinds of electronic equipment/guide bar, drive shaft, and pillarProduct 1.provides LMUU series Linear Ball with seals on both side to prevent ingress of dirt, water and foreign matter.2.Linear Motion (also called Ball Bushing or Shaft Guiding) is a rolling friction supporting that usually used for linear motion mechanical parts with small friction.3.Coordinate with Linear Motion Shaft, recirculating balls stroke at low friction movement, permit temperature within 80 degree Celsius.4.It is great for 3D printer, , and other applications.Specification: No.: LM25UUBall Circuit: 6Static Load Capacity (Cor): 1.57kNDynamic Load Capacity (): 0.98kNColour:SilverMaterial:Chrome steel + nylonSize:Shaft diameter: 25mmOuter diameter: 40mmLength: 59mmPackage Contents:4 * Linear Only the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin