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Gear ratio is the speed reduction/increase between input and output shafts. It determines torque multiplication and shaft speeds.
सूत्र
Ratio = N_input / N_output = N_driven / N_driver = T_output / T_input
चरण-दर-चरण मार्गदर्शिका
- 1Ratio = N_input / N_output = N_driven / N_driver = T_output / T_input
- 2Spur gears: ratio = number of teeth on driven / number on driver
- 3Power is conserved: P = T × ω
हल किए गए उदाहरण
इनपुट
Input 1800 rpm, output 600 rpm
परिणाम
Gear ratio = 3:1 (3× speed reduction, 3× torque increase)
Power unchanged
सामान्य गलतियां जिनसे बचना है
- ✕Confusing speed ratio with force multiplication
- ✕Neglecting friction losses in extended calculations
अक्सर पूछे जाने वाले प्रश्न
Can any two gears mesh together?
No, they must have same pressure angle and pitch. Teeth must fit smoothly without interference.
How is efficiency handled?
Mechanical power loss (5-10%) converts to heat; P_out = P_in × η.
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