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THEORY OF MACHINE

Theory of Machine
The pressure angle of a cam depends upon

Angle of ascent
Offset between center lines of cam and follower
Lift of follower
All of these

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Theory of Machine
The size of cam depends upon

Prime circle
Base circle
Pitch circle
Pitch curve

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Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ω² (R - r₁) sinθ
ω² r₁ sinθ
ω² (R - r₁) cosθ
ω² R cosθ

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Theory of Machine
The acceleration of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by

ω². (r₁ r₂). (1 - cos² θ)
ω². (r₁ + r₂). (1 + cos² θ)
ω². (r₁ + r₂). [(2 - cos² θ)/cos³ θ]
ω². (r₁ - r₂). (1 - sin² θ)

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Theory of Machine
The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ωr₁ sinθ
ω(R - r₁) sinθ
ω(R - r₁) cosθ
ωR cosθ

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