Rexnord's Falk Lifelign Gear Couplings: Falk Lifelign Gear Couplings are engineered and manufactured with triple-crowned teeth, crowned on the root, tip and face, allowing the coupling to articulate freely and minimize wear caused by misalignment. With the Lifelign gear coupling advantages of eliminating tip-loading while also reducing backlash and radial clearances, Lifelign gear coupling's triple-crown teeth can help protect equipment from damaging loads. Rexnord's gear couplings are available in 13 different models and 28 sizes from general purpose, to high-speed and high-torque applicaitons. Large flex hubs in these gear coupling lines accomodate high-torque application in space limited installations.