[ \tan \alpha_t = \frac\tan \alpha_n\cos \beta ]
The lead ( L ) of the helix is:
where ( r_b ) is the base circle radius and ( \theta ) is the roll angle. For helical gears, the transverse pressure angle ( \alpha_t ) relates to the normal pressure angle:
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Shri Narendra Modi was sworn-in as India’s Prime Minister on 30th May 2019, marking the start of his second term in office. The first ever Prime Minister to be born after Independence, Shri Modi has previously served as the Prime Minister of India from 2014 to 2019. He also has the distinction of being the longest serving Chief Minister of Gujarat with his term spanning from October 2001 to May 2014. In the 2014 and 2019 Parliamentary elections, Shri Modi led the Bharatiya Janata Party to record wins, securing absolute majority on both occasions. The last time that a political party ...
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[ \tan \alpha_t = \frac\tan \alpha_n\cos \beta ]
The lead ( L ) of the helix is:
where ( r_b ) is the base circle radius and ( \theta ) is the roll angle. For helical gears, the transverse pressure angle ( \alpha_t ) relates to the normal pressure angle:
