| 摘要 |
PURPOSE:To dispense with lubricating oil, by using a self-lubricating spherical bearing in a bearing structure of a roller for a crawler type car supporting an end part of the roller on a roller frame via a bearing. CONSTITUTION:A left end of a roller 8 is supported on a roller frame 3 via a self-lubricating spherical bearing 22. This self-lubricating spherical bearing 22 is provided with an inner race 22a being pressed in the left end of the roller 8 and regulated by a stepped part 8a for its position and an outer race 22b locked to the roller frame 3 with a bolt or the like, and made up of inserting a solid lubricant into space between spherical slide surfaces 22c of both races. In addition, at the left end of the outer race 22b, a cap 24 set up via an O-ring 25 is locked with a bolt 26. |
