automobile

1. •UNIVERSAL JOINT
•CONSTANT VELOCITY JOINT
•RZEPPA JOINT

3.  A universal joint, (universal coupling, U-joint
or Hooke's joint) is a joint or coupling in a rigid
rod that allows the rod to 'bend' in any direction,
and is commonly used in shafts that
transmit rotary motion.
 To give drive at varying angles ( up to 20 degree)

6.  Constant-velocity joints ( CV joints) allow a drive
shaft to transmit power through a variable angle,
at constant rotational speed, without an
appreciable increase in friction or play.
 They are mainly used in front wheel drive vehicles
and 4x4 drive vehicles.
 The angle up to 30 degrees

10.  A Rzeppa joint consists of a spherical inner shell with 6
grooves in it and a similar enveloping outer shell.
 Each groove guides one ball.
 The input shaft fits in the centre of a large, steel, star-
shaped "gear" that nests inside a circular cage.
 The cage is spherical but with ends open, and it
typically has six openings around the perimeter.
 This cage and gear fit into a grooved cup that has a
splined and threaded shaft attached to it.
 Six large steel balls sit inside the cup grooves and fit
into the cage openings, nestled in the grooves of the
star gear.
RZEPPA JOINT