Torq-Tenders from Zero-Max Inc., Plymouth, Minn., are positive-drive couplings that provide accurate overload protection in mechanical power-transmission systems.
New GHS motorized spindles from Russell T. Gilman Inc., Grafton, Wis., have "Dynamic Preload Control" that lets users vary spindle stiffness while machining.
Using the Rotalign Pro laser shaft/coupling alignment system from Ludeca Inc., Miami, maintenance technicians can now align the power-transmission shafts of machine trains with up to six components.