Patent ID: 7223193

Claim:
A differential mechanism comprising: a casing with first and second ends, with the first end having a cover longitudinally mounted thereon, with the cover including a through hole, with the second end having an inner periphery; and a rotator assembly mounted in the casing, with the rotor assembly including: a cylindrical seat rotatably received in the casing, with the cylindrical seat including a protrusion rotatably received in the inner periphery of the second end of the casing; a shaft diametrically mounted in the cylindrical seat and having two opposite ends; two differential gears respectively rotatably mounted to the two opposite ends of the shaft and respectively engaged to a corresponding one of two drive gears that are respectively securely sleeved on a first drive axle and a second drive axle, with the first and second drive axles being rotatable relative to the casing and the cylindrical seat, with the first drive shaft rotatably extending through the cover, with the second drive shaft rotatably extending through the second end of the casing, with the protrusion being rotatably mounted on the second drive shaft; and an input coupling rotatably mounted in the casing and mounted to the seat and extending through the cover, with the input coupling being sleeved on the first drive axle and rotatable relative thereto, with the input coupling rotatable relative to the cover of the casing, thereby the input coupling can be easily connected to a transfer element with the first and second ends of the casing including radially extending ears for mounting the casing, wherein the cover has a radially extending flange axially spaced from the ears of the first and second ends of the casing, with the radially extending flange including multiple threaded holes defined therein for easily mounting the differential mechanism to a gearbox.