Patent ID: 7036991
Filing Date: 2006-05-02
Classification: B23B,B23Q,F16C

Abstract:
1. A spindle assembly adapted to be mounted on the rotatable head of a multi-spindle automatic screw machine, said head having a forwardly-facing abutment surface, comprising: a one-piece outer spindle having a front end, a rear end, and a rearwardly-facing abutment surface adjacent said front end; a seal member surrounding said outer spindle, said seal member having a front end arranged to bear against said outer spindle abutment surface and having a rear end; a least one front bearing surrounding said outer spindle, said front bearing having a inner race and an outer race, the front end of said front bearing inner race being arranged to bear against the rear end of said seal member, the rear end of said front bearing outer race being arranged to bear against said head abutment surface, the outer race of said front bearing being arranged to radially engage one portion of said head; a front bearing retainer nut matingly engaging said head and having a rear end arranged to bear against the front end of said front bearing outer race; a spacer surrounding an intermediate portion of said outer spindle, said spacer having a front end adapted to bear against the rear end of said front bearing inner race, and having a rear end; at least one rear bearing surrounding said outer spindle, said rear bearing having an inner race and an outer race, the front end of said rear bearing inner race being arranged to bear against the rear end of said spacer, said outer race of said rear bearing being arranged to radially engage another portion of said head; and a rear bearing retainer nut matingly engaging said outer spindle and arranged to bear against the rear end of said rear bearing.