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MECHANISMS (ROTARY MOTION MECHANISMS (Friction Drives (Friction drives are…

- - - - Class 2: The resistance is between the fulcrum and the effort applied.
      - Class 3: The effort applied is between the fulcrum and the resistance.
      - Class 1: The fulcrum is between the effort applied and the resistance.
- - - - This consists of a bolt or threaded bar and a nut that has the same intenor diameter as the diameter of the bolt.
    - - A winch and crank handle system consists of a drum that rotates and a crank handle that allows to pull or lift obiects.
      - F · d = R · r -> F = R · R · r / d
    - - This uses a pinion that is a small cogwheel, mounted on a rack that is a toothed belt or bar
      - L = P · Z · N
  - - - This is composed of a crank and a rod called a connecting rod or link. This rod has articulated Ioints at each end — one is connected to the crank and the other to the slider
    - - This is a set of connecting rods attached to a jointed axle. Each of the joints of the axle acts as a crank
    - - This is basically a rotating object that pushes a follower as it moves.
    - - This consists of a wheel with an off centre rotation axle that doesn't coincide with the centre of its circumference.