Question 11
The sketch above shows the sectional view of a final drive. Use it to answer the following questions.
- Name the parts labelled V, W, X, Y and Z.
- State three forces acting on the half-shaft.
- Name the wheel in the differential unit to which the half shaft is fixed.
- State the location of the bearing in a semi-floating axle shaft support.
- How is the half-shaft inner end fitted to the differential unit?
Observation
Solution
(a)
V: Cage Y: Sun wheel
W: Half shaft Z: Crown wheel
X: Bearing
(b) Forces Acting on Half Shaft
- Shear force due the weight of the vehicle
- Bending force due to the weight of the vehicle
- Torsional force due to the torques generated by driving and brake application
- Side thrust forces when cornering
(c) The Wheel in the Differential Unit to Which the Half-Shaft is Fixed
Sun wheel
(d) The Location of the Bearing in a Semi-Floating Axle Shaft Support
It is fitted directly on the half-shaft
(e) How the Inner End of the Half-Shaft is Fitted to the Differential Unit
By splinning