Linear motion ball Truck Tyre classification: Stard series of the most widely used series of three different sizes:LM Series: Metric dimension series (with Southeast Asian countries) LME Series: Metric dimension series (U.S. only). l microadaptation light thin sht dem time series the ultrasmall diameter size diameter are: 34 5MM. l Stainless steel outer ring ball both ends of the cover are stainless steel cage with plastic manufacturing.S SL ... ... UU l removal of an open ball the cresponding outer ring get high rigidity to prevent warping of the lead body axis adjustability of the gap can be obtained at the same time no loose with the state.LM ... ... OP LME ... ... OP l adjustable gap along the long axis in the outer ring has a slit type opening to adjust the fixed Truck Tyre shell to match no loose state.LM ... ... ADJ LME ... ... ADJ l with seal type Truck Tyre singleended ends with a special synthetic rubber lip seals suitable f dusty feign body in place maintain the oil well do not leak.