Gear Ratio ಅನ್ನು ಹೇಗೆ ಲೆಕ್ಕ ಹಾಕುವುದು
Gear Ratio ಎಂದರೇನು?
Gear ratio is the speed reduction/increase between input and output shafts. It determines torque multiplication and shaft speeds.
ಸೂತ್ರ
Ratio = N_input / N_output = N_driven / N_driver = T_output / T_input
ಹಂತ-ಹಂತದ ಮಾರ್ಗದರ್ಶಿ
- 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
Worked Examples
ಇನ್ಪುಟ್
Input 1800 rpm, output 600 rpm
ಫಲಿತಾಂಶ
Gear ratio = 3:1 (3× speed reduction, 3× torque increase)
Power unchanged
Common Mistakes to Avoid
- ✕Confusing speed ratio with force multiplication
- ✕Neglecting friction losses in extended calculations
Frequently Asked Questions
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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