Patent ID: 6863858

Claim:
A method for manufacturing a motor/gear drive having a shaft with a worm gear carried thereon, and a free tip end portion with an outer diameter terminating in an end wall, and a housing having a bore formed coaxial with respect to the shaft to be installed therein, the method comprising the steps of: inserting a mold core into the bore of the housing, the mold core having a first end portion with a diameter larger than the outer diameter of the free tip end portion of the shaft and a second larger diameter portion with a shoulder formed between the first and second portions sealingly closing a first portion of the bore in the housing, the first portion of the bore in the housing and the first end portion of the mold core forming an interior cavity therebetween; injecting molten plastic into the interior cavity through a first gate to form a sleeve having an inner diameter surface surrounding a hollow bore; and removing the mold core.