uxcell 4pcs LM8UU 8x15x17mm Double Side Rubber Seal Linear Motion Ball Bearing Bushing</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Double Side Rubber Seal Linear Motion Ball Bearing Bushing.</li><li>Great for linear motion on 3D printer， cnc， and other applications.</li><li>These ball bearing with two rubber dust sealed to prevent ingress of dirt， water and foreign matter.</li><li>Smooth moving， low friction， high rigidity and long life.</li><li>Economical， easy to maintain replace.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41HIqBchgAL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41RnfSHCNxL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41aNiTnZoWL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41gCQwUsgQL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51QxqYBNywL.jpg' noproxy></br>