It depends on what kind of robot you are talking about.
cats
Study which deals with the construction and components of a robot. (It deals with the components such as wrist, arm, joints and body).
A scara robot uaually have 4 degrees of freedom
the answer is 0
I will guess: bearings. the more fluid the motion, the less friction. or the joint could be a silicon soft plastic type that flex and allow fluid like motion while maintaining strength.
In a robot there is a joint where ever you put a motor that will move the metal/plastic "bones" of the robot so you can have as many joints as you like. Source: My Brain
cats
However many the designer wants it to have.
Study which deals with the construction and components of a robot. (It deals with the components such as wrist, arm, joints and body).
Stationary Robots. These are robot that are fixed in position. They tend to have robot arms that can move about. The diagram below shows a large-scale stationary robot arm. It has mobile joints called 'the wrist', 'the elbow', 'the waist' and 'the shoulder'.
The same number as a car driven by a person. The precise number would depend on the make and model of the car.
elbow neck shoulder feet knee finger nose
The Complete Robot has 688 pages.
200 joints
It has 3 joints.
360 joints
They have 1,000,000 joints