Unformatted text preview: should be checked for the safe bearing pressure.
We know that the total reaction at the bearing 2, FP W T1 + T2
∴ Total bearing pressure = l . d
R2 = where l2 = Length of bearing 2. 32.21 Side or Overhung Crankshaft
The side or overhung crankshafts are used for medium size and large horizontal engines. Its
main advantage is that it requires only two bearings in either the single or two crank construction. The
design procedure for the side or overhung crankshaft is same as that for centre crankshaft. Let us now
design the side crankshaft by considering the two crank positions, i.e. when the crank is at dead centre
(or when the crankshaft is subjected to maximum bending moment) and when the crank is at an angle
at which the twisting moment is maximum. These two cases are discussed in detail as below:
1. When the crank is at dead centre. Consider a side crankshaft at dead centre with its loads
and distances of their application, as shown in Fig. 32.18. Fig. 32.18. Side crankshaft at dead centre. Internal Combustion Engine Parts n 1171 Let D = Pi...
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- Spring '11
- Combustion, Internal combustion engine, pistons, Connecting rod, Engine technology, piston pin