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Two mating spur gears have 40 and 120 teeth respectively. The pinion rotates at 1200 rpm and transmits a torque of 20 Nm. The torque transmitted by the gear is
  • a)
    6.6 Nm
  • b)
    20 Nm
  • c)
    40 Nm
  • d)
    60Nm  
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Two mating spur gears have 40 and 120 teeth respectively. The pinion r...


where, NP speed of pinion, NG speed of gear wheel

TG = number of teeth of gear,
TP = number of teeth of pinion

Since power transmitted by both gear will be equal

where, TP = torque transmitted by pinion, TG = torque transmitted by gear wheel
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Most Upvoted Answer
Two mating spur gears have 40 and 120 teeth respectively. The pinion r...
Torqueof gear÷Torque of pinion = teeth(gear)÷teeth if pinion
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Two mating spur gears have 40 and 120 teeth respectively. The pinion rotates at 1200 rpm and transmits a torque of 20 Nm. The torque transmitted by the gear isa)6.6 Nmb)20 Nmc)40 Nmd)60Nm Correct answer is option 'D'. Can you explain this answer?
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