The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r1 = Minimum radius of the cam, r2 = Radius of the roller follower and = Angle turned by the cam from the beginning of the follower displacement)

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Theory of Machine

The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower and $$\theta $$ = Angle turned by the cam from the beginning of the follower displacement)

A) $$\left( {{{\text{r}}_1} - {{\text{r}}_2}} \right)\left( {1 - \cos \theta } \right)$$ B) $$\left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)\left( {1 + \cos \theta } \right)$$ C) $$\left( {{{\text{r}}_1} - {{\text{r}}_2}} \right)\left( {\frac{{1 - \cos \theta }}{{\cos \theta }}} \right)$$ D) $$\left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)\left( {\frac{{1 - \cos \theta }}{{\cos \theta }}} \right)$$

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Correct Answer: Option D

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The displacement of the reciprocating roller follower when it has contact...

The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r1 = Minimum radius of the cam, r2 = Radius of the roller follower and $$\theta $$ = Angle turned by the cam from the beginning of the follower displacement)

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