Tangential force due to rated torque T 60 10 6 kW 2 \u03c0 n p 60 10 6 25 2 \u03c0 500

Tangential force due to rated torque t 60 10 6 kw 2

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Tangential force due to rated torque T = 60 × 10 6 × ( kW ) 2 π n p = 60 × 10 6 × ( 2.5 ) 2 π × 500 = 47746.48 Nmm P t = 2 T d p = 2 × 47746.48 80 = 1193.66 N (IV) Dynamic load by Buckingham’s equation The error for Class-3 gear teeth with 4 mm module is 0.0125 mm. (from data sheet) v = π d p n p 60 × 10 3 = π × 80 × 500 60 × 10 3 = 2.094 m s P d = 21 v ( Ceb + P t ) 21 v + ( Ceb + P t ) = 21 × 2.094 ( 11400 × .0125 × 20 + 1193.66 ) 21 × 2.094 + ( 11400 × 0.0125 × 20 + 1193.66 ) ¿ 1653.25 N (V) Effective Load P eff = C s P t + P d = 1.5 ( 1193.66 ) + 1653.25 = 3443.74 N (VI) Factor of safety Against bending failure
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fs = S b P eff = 4872.37 3443.74 = 1.41 Against pitting failure fs = S w P eff = 5113.53 3443.74 = 1.48 Mountings of bevel gear Bevel gear is mounted at the places where power is transmitted between two shafts which are intersecting each other at an angle. In case of perpendicular shafts, miter gear is used. Shafts that intersects each other at an angle slightly greater than 90˚ crown gears are mounted. For planetary gear trains, internal bevel gears are used. For non-parallel non-intersecting shafts, skew bevel gears are used.
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