Early Automotive Drive Systems
Early front wheel drive systems such as those used on the Citroën Traction Avant and the front axles of Land Rover and similar four wheel drive vehicles used universal joints, where a cross-shaped metal pivot sits between two forked carriers. These are not CV joints as, except for specific configurations, they result in a variation of the angular velocity. They are simple to make and can be tremendously strong, and are still used to provide a flexible coupling in some propshafts, where there is not very much movement. However, they become "notchy" and difficult to turn when operated at extreme angles, and need regular maintenance. They also need more complicated support bearings when used in drive axles, and could only be used in rigid axle designs.
Read more about this topic: Constant-velocity Joint
Famous quotes containing the words early, drive and/or systems:
“Many a woman shudders ... at the terrible eclipse of those intellectual powers which in early life seemed prophetic of usefulness and happiness, hence the army of martyrs among our married and unmarried women who, not having cultivated a taste for science, art or literature, form a corps of nervous patients who make fortunes for agreeable physicians ...”
—Sarah M. Grimke (1792–1873)
“To drive men from independence to live on alms, is itself great cruelty.”
—Edmund Burke (1729–1797)
“The only people who treasure systems are those whom the whole truth evades, who want to catch it by the tail. A system is just like truth’s tail, but the truth is like a lizard. It will leave the tail in your hand and escape; it knows that it will soon grow another tail.”
—Ivan Sergeevich Turgenev (1818–1883)