Patent ID: 7963346

Claim:
A power tool comprising: a housing, an output shaft driven by a rotation motor; and an angle drive mechanism coupling the motor to the output shaft, said angle drive mechanism including: a drive spindle coupled to the motor and carrying a pinion; a bevel gear mounted on the output shaft; wherein said drive spindle is axially supported relative to the housing by a ball bearing having an inner ring and an outer ring; and an adjusting device which sets an axial position of said drive spindle and said pinion relative to the bevel gear; wherein said outer ring is axially secured relative to the housing; wherein said adjusting device comprises: a threaded portion on said drive spindle; an internal thread formed integrally with said inner ring and arranged to cooperate with said threaded portion on said drive spindle; and a coupling device arranged to rotationally lock said inner ring relative to said drive spindle as a desired axial position of said drive spindle is obtained; and wherein said coupling device comprises: a number of axially directed coupling teeth on said inner ring; and an annular coupling element provided with axially directed engagement teeth for cooperation with said coupling teeth; said coupling element having radially inwardly directed engagement teeth for cooperation with splines on said drive spindle.