Patent ID: 7156191
Filing Date: 2007-01-02
Classification: B23B,H02K

Abstract:
1. A motor and gearbox combination for use in a portable power tool, having: a motor section comprising: a cylindrical deep drawn motor housing having an integrally formed first end and an open second end, said first end being closed except for an opening, a first bearing supported at the first end of the motor housing in said opening, a stator fixed to the motor housing, wherein the motor housing encloses a majority of an axial length of said stator, a cap closing the open second end of the motor housing and supporting a second bearing, said cap enclosing a majority of an axial length of said motor housing, a motor shaft journalled at one end in the first bearing so as to close said first end of said motor housing and at the other end in the second bearing, and a rotor mounted on the motor shaft in confrontation with the stator, a gearbox section comprising: a gearbox housing accommodating a gear train and an output shaft, the first end of said motor housing being adjacent said gear box section, the cap being directly connected to the gearbox housing and the cap and gearbox housing substantially enclosing the motor housing.