US Patent 7581888 Bearing with lubricant reservoir

A bearing for storing a lubricant and supplying the lubricant to a shaft is provided. The bearing includes an inner wall defining an axial bore adapted for receiving the shaft therethrough and an outer wall spaced apart from the inner wall. The bearing also includes a connecting portion disposed between the inner and outer walls and extending axially between first and second faces. At least one reservoir extends axially into the connecting portion between an open end at the first face and a closed end spaced apart from the second face for retaining and supplying the lubricant to the shaft.