Page 180 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

Exercise 8.40
Draw the saddle keys - hollow and flat in isometric view and also the assembly. (Fig 4)

Diameter of shaft = 50 mm
Width (b) = 0.25 d = 12.5 mm
Thickness (h) = 0.08d = 4 mm
Length: approx. 2d = 100 mm
– Hollow saddle key

– Flat saddle key
– Flat saddle key assembly
– Flat saddle key assembly

Fig 4

Exercise 8.41
Woodruff keys
Draw the woodruff key and also its assembly for shaft diameter 50 mm.(Fig 5 & 6)
Thickness (b) = d/6 = 8 mm
Radius (R) = 2b = 16 mm

Max. height of key (h) = 2b - 0.25b = 1.75b = 14 mm
– Wood ruff key
– Assembly

Fig 5 Fig 6

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CITS :Engineering Drawing (Mechanical) - Exercise 8 CITS :Engineering Drawing (Mechanical) - Exercise 8