In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$ heta $$ = Semi-angle of each block subtending at the center of drum and n = Number of blocks)

Question

In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$	heta $$ = Semi-angle of each block subtending at the center of drum and n = Number of blocks)

Accepted Answer

T
1
T
2
=
(
1+μtanθ
1−μtanθ
)
n

In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$\theta $$ = Semi-angle of each block subtending at the center of drum and n = Number of blocks)

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