Linear Motion Ball Bearing Bushing Sealed on Both SideChromium Steel shell and bearing ball, good abrasion , high precision and good strengthSmooth moving, low friction, high rigidity and long working lifeSuitalbe for kinds of electronic equipment/guide bar, drive shaft, and pillarProduct 1provides LMUU series Linear Ball Bearing with seals on both side to prevent ingress of dirt, water and foreign matter.2Linear Motion Bearing (also called Ball Bushing or Shaft Guiding) is a rolling friction supporting elements that usually used for linear motion mechanical parts with small friction.3Coordinate with Linear Motion Shaft, recirculating balls provide unlimited stroke at low friction movement, permit temperature within 80 degree Celsius.4It is great for 3D printer, CNC, and other applications.Specification:Bearing No.: LM25UUBall Circuit: 6Static Load Capacity (Cor): 157kNDynamic Load Capacity (Cr): 098kNColour:SilverMaterial:Chrome steel + nylonSize:Shaft diameter: 25mmOuter diameter: 40mmLength: 59mmPackage Contents:4 * Linear Ball BearingsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.