Size shaft is required to transmit 100 Hp @ 1000 rpm

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In summary, to transmit 100 Hp @ 1000 rpm with a maximum shear stress of 10,000 psi and an angle of twist less than 1 degree per foot, a steel shaft is required. The military handbook, MIL-HDBK-776 (AR) Shafts, Elastic Torsional Stress Analysis of, contains the relevant equations and information needed to determine the size of the required shaft.
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john2516
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what size shaft is required to transmit 100 Hp @ 1000 rpm ,if max shear stress is 10,000 psi .angle of twist must be less than 1 degree /ft .shaft is made of steel.
 
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john2516 said:
what size shaft is required to transmit 100 Hp @ 1000 rpm ,if max shear stress is 10,000 psi .angle of twist must be less than 1 degree /ft .shaft is made of steel.

You need to show us the relevant equations and your attempt at a solution before we can help you on your question.
 
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You might want to refer a handbook!
 
  • #4


Refer to the military handbook, MIL-HDBK-776 (AR) Shafts, Elastic Torsional Stress Analysis of

It has EXACTLY what you need.
 

1. What is the formula for calculating the required shaft size for transmitting 100 Hp @ 1000 rpm?

The formula for calculating the required shaft size is: Shaft diameter (inches) = 0.00019 x HP x RPM

2. How do I determine the torque required for a 100 Hp @ 1000 rpm transmission?

To determine the torque required, use the formula: Torque (lb-ft) = (HP x 5252) / RPM = (100 x 5252) / 1000 = 525.2 lb-ft

3. Does the material of the shaft affect the required size?

Yes, the material of the shaft can affect the required size. Different materials have different strength and stiffness properties, which can impact the shaft's ability to transmit power.

4. What is the standard safety factor used for determining the required shaft size?

The standard safety factor used for determining the required shaft size is typically 2 to 3. This ensures that the shaft can handle the expected load and any unexpected stresses without failure.

5. Are there any other factors that should be considered when determining the required shaft size?

Yes, there are other factors that should be considered such as the type of loading (constant or fluctuating), the operating conditions (temperature, vibration, etc.), and the design of the shaft (keyways, bearings, etc.). These factors can impact the required size and should be carefully evaluated.

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