It sometimes happens that certain parts for residential garage door openers break or wear out prematurely because they are made in plastic. Explore Unique Physique's board 'Sliding Door Gear' on Pinterest. . Large pivoting doors opening up the interior towards the garden. Modern Contemporary Art Loft Real Estate NYC Architecture Inspiration New York YYC YYCRE Calgary . 041C4220A is the replacement gear and sprocket kit used in most Chamberlain Garage Door Openers. Click here for details. 19 results - No matter what replacement or spare Chamberlain garage door opener parts you need for your garage, we have the information need to get it the right . Apr 22, 2009 - Craftsman Garage Door Opener drive gear replacemnt . a kitchen that can hide or be in plain sight, thanks to doors, curtains and savvy design. Craftsman 41C4220A Garage Door Opener Gear and Sprocket Assembly Genuine Original Equipment Manufacturer (OEM) Part for Craftsman & Chamberlain . Craftsman 41A2817 Garage Door Opener Drive and Worm Gear Kit Genuine Original Equipment Manufacturer (OEM) Part for Craftsman & Chamberlain . Most openers use an operator rail to raise the garage door. The opener causes a few gears to turn, which turns a sprocket. This sprocket contains a belt or chain . reference to ameliorate an automatic car-door opening (closing) system, and find a scheme matching requirements in design. Next, a motor gear transmission .