Automobile Engineering

1. UNIVERSAL JOINT
PRESENTED BY
ASHEEM KUMAR PALO
Centurion University, INDIA

2. PURPOSE
Allows flexing of the driveshaft due to suspension
movement.
For better torque transmission at different angles
and heights

4. TYPES OF UNIVERSAL JOINTS
• Variable velocity joint
I. Cross or spider type
II. Ring type
III. Ball & turnion type
• Constant velocity joint
I. Rzeppa
II. Bendix weeiss
III. Tracta

5. CONSTRUCTION
 A steel ‘X’ with each end precision
machined.
 Bearings caps with small needle bearings
fit over each end.
 Grooves for retaining rings are cut into
each cap.
 A grease fitting is fitted to allow for
regular lubriciation.

7. LOCATION
 One universal joint is attached to the driveshaft at
each end.
 The front u-joint is also attached to a slip yoke which
fits into the tailstock of the transmission.
 Some heavy duty vehicles with a two-piece shaft
have three u-joints
 Some older 4 wheel drive vehicles have a u-joint at
each front wheel also.

9. PROBLEMS
 Universal joints wear from high mileage and a lack of
regular lubrication.
 Dry u-joints rust and seize, causing noises and
vibration.
 Excessively worn u-joints can break, causing costly
damage.

10. UNIVERSAL JOINTS

11. THANK YOU
An ASHEEM KUMAR PALO presentation
asheemkumarpl3@gmail.com