Patent ID: 8579087

Claim:
A lubricating grease charging device for automobile brake hub bearings, characterized by comprising: an operation spindle, an outer diameter of an upper body section thereof being slightly smaller than an inner diameter of an outer bearing of the automobile brake hub, and an outer diameter of a lower body section thereof being slightly smaller than an inner diameter of an inner bearing of the automobile brake hub; the operation spindle being provided in an outer bearing chamber and an inner bearing chamber of the automobile brake hub as well as in a cavity between the outer bearing chamber and the inner bearing chamber; a first closing member and a second closing member, which close a space in which the operation spindle is disposed at two ends respectively; a lubricating grease charging passage, through which lubricating grease can be charged into the space in which the operation spindle is disposed; and the first closing member is a gland for closing an opening of the outer bearing chamber; the lubricating grease charging passage comprises a pipe joint provided in the gland, so as to charge the lubricating grease into the space in which the operation spindle is disposed through the pipe joint; the second closing member is a supporting platform at a bottom of the operation spindle; and the operation spindle further comprises lubricating grease recovering holes therein, inner ends of the lubricating grease recovering holes are communicated with the cavity in which the operation spindle is disposed, and outer ends of the lubricating grease recovering holes are communicated with a lubricating grease recovering device; and wherein the supporting platform comprises a chamfer surface facing lateral-upper side, the inner ends of the lubricating grease recovering holes are located on the chamfer surface, and the outer ends of the lubricating grease recovering hole are located in a counterbore at the bottom of the operation spindle.