Bearing support for bobbin-spindle drive

Claim 1

A bobbin drive comprising: a housing having an upper wall and a lower wall; a motor in said housing provided with a rotor between an upper shaft portion projecting upwardly through said upper wall and a lower shaft portion projecting downwardly toward said lower wall; a bobbin-support spindle fixed on said upper shaft portion above said upper wall; a journal rotationally supporting said lower shaft portion adjacent said lower wall; an oil sump adjacent said journal containing a lower body of oil in which said journal is at least partially submerged; an upper bearing rotationally supporting said upper shaft portion in said upper wall, said upper bearing including an outer race and an inner race separated by rotary bodies in an intervening annular gap; and an oil reservoir directly underneath said upper bearing containing an oil-saturated felt ring and communicating through a substantially vertical passage with said gap for conducting oil from said felt ring to said upper bearing, said felt ring lying just below said passage and extending radially beyond said outer race within said reservoir under a portion of said upper wall provided with a fill hole.