engineering recuitment BMC JE Mock Test 2024 Theory of Machines Gear Centre Distance of Helical Gear
The centre distance between two involute teeth gears of base radii R1 and R2 , and pressure angle ϕ is given by
1
(R1 + R2) × sin ϕ
2
(R1 + R2) × cos ϕ
3
(D1 + D2) × cos ϕ
4
(R1 + R2)/sin ϕ
5
(R1 + R2)/cos ϕ