اتمنى المساعده ف هذا الواجب زز

[AL DEWAN]

1. With the help of neat sketch explain the different types of rolling bearings with their applications, advantages and disadvantages.
(Diagram 1.5 mark, Description 1. mark, Advantages 0.5 mark, Disadvantages 0.5 mark, Applications 0.5
mark)

2. How different speeds of spindle are achieved in lathe machine? Explain the arrangement of gears for 9 different speeds. Show two gear ratios with example.
(Description 1 mark, Diagram 1.5 marks, Example 1.5 marks)