Service factor for motor Solution

STEP 0: Pre-Calculation Summary
Formula Used
Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear
Ks = Mtstart/MTrated
This formula uses 3 Variables
Variables Used
Service Factor for Spur Gear - Service Factor for Spur Gear is defined as the ratio of the torque capacity and the rated torque value.
Starting Torque on Spur Gear - (Measured in Newton Meter) - Starting Torque on Spur Gear is the torque that is acting onto the spur gear to make it start rotating.
Rated Torque of Spur Gear - (Measured in Newton Meter) - The Rated Torque of Spur Gear is the torque capacity for which the gear is rated.
STEP 1: Convert Input(s) to Base Unit
Starting Torque on Spur Gear: 31500 Newton Millimeter --> 31.5 Newton Meter (Check conversion here)
Rated Torque of Spur Gear: 26000 Newton Millimeter --> 26 Newton Meter (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ks = Mtstart/MTrated --> 31.5/26
Evaluating ... ...
Ks = 1.21153846153846
STEP 3: Convert Result to Output's Unit
1.21153846153846 --> No Conversion Required
FINAL ANSWER
1.21153846153846 1.211538 <-- Service Factor for Spur Gear
(Calculation completed in 00.004 seconds)

Credits

Created by Vaibhav Malani
National Institute of Technology (NIT), Tiruchirapalli
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Verified by Sagar S Kulkarni
Dayananda Sagar College of Engineering (DSCE), Bengaluru
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25 Design of Spur Gears Calculators

Center to Center Distance between Spur Gears
Go Distance between Spur Gear Centres = Module of Spur Gear*((Number of Teeth on Pinion+Number of Teeth on Spur Gear)/2)
Circular Pitch of Gear given Diameter and Number of Teeth
Go Circular Pitch of Spur Gear = pi*Pitch Circle Diameter of Spur Gear/Number of Teeth on Spur Gear
Resultant Force on Gear
Go Resultant Force on Spur Gear = Tangential Force on Spur Gear/cos(Pressure Angle of Spur Gear)
Radial Force of Gear given Tangential Force and Pressure Angle
Go Radial Force on Spur Gear = Tangential Force on Spur Gear*tan(Pressure Angle of Spur Gear)
Tangential Force on Gear given Radial Force and Pressure Angle
Go Tangential Force on Spur Gear = Radial Force on Spur Gear*cot(Pressure Angle of Spur Gear)
Pitch Circle Diameter of holes of Medium Size Gear
Go Pitch Circle Diameter of Holes in Gear = (Inner Diameter of Rim of Spur Gear+Outer Diameter of Spur Gear Hub)/2
Diameter of Holes in Gear Web of Medium Size Diameter
Go Diameter of Holes in Spur Gear Web = (Inner Diameter of Rim of Spur Gear-Outer Diameter of Spur Gear Hub)/4
Inner Diameter of Rim of Large Size Gear
Go Inner Diameter of Rim of Spur Gear = Dedendum Circle Diameter of Spur Gear-2*Thickness of Spur Gear Rim
Torque Transmitted by Gear given Tangential Force and Pitch Circle Diameter
Go Torque transmitted by spur gear = Tangential Force on Spur Gear*Pitch Circle Diameter of Spur Gear/2
Addendum Circle Diameter of Medium Size Gear Diameter given Addendum
Go Addendum Circle Diameter of Spur Gear = Pitch Circle Diameter of Spur Gear+(2*Addendum of spur gear)
Tangential Force on Gear given Torque and Pitch Circle Diameter
Go Tangential Force on Spur Gear = 2*Torque transmitted by spur gear/Pitch Circle Diameter of Spur Gear
Dedendum Circle Diameter of Medium Size Gear given Dedundum
Go Dedendum Circle Diameter of Spur Gear = Pitch Circle Diameter of Spur Gear-(2*Dedundum of Spur Gear)
Diametral Pitch of Gear given Number of teeth and Pitch Circle Diameter
Go Diametral Pitch of Spur Gear = Number of Teeth on Spur Gear/Pitch Circle Diameter of Spur Gear
Dedendum Circle Diameter of Large Size Gear
Go Dedendum Circle Diameter of Spur Gear = Module of Spur Gear*(Number of Teeth on Spur Gear-2.5)
Addendum Circle Diameter of Large Size Gear
Go Addendum Circle Diameter of Spur Gear = Module of Spur Gear*(Number of Teeth on Spur Gear+2)
Pitch Circle Diameter of Gear given Module and Number of Teeth
Go Pitch Circle Diameter of Spur Gear = Module of Spur Gear*Number of Teeth on Spur Gear
Module of Gear given Pitch Circle Diameter
Go Module of Spur Gear = Pitch Circle Diameter of Spur Gear/Number of Teeth on Spur Gear
Maximum Torque of Gear given Service Factor
Go Maximum Torque on Spur Gear = Service Factor for Spur Gear*Rated Torque of Spur Gear
Service Factor for Gear given Torque
Go Service Factor for Spur Gear = Maximum Torque on Spur Gear/Rated Torque of Spur Gear
Gear Ratio given Number of Teeth
Go Gear Ratio of Spur Gear = Number of Teeth on Spur Gear/Number of Teeth on Pinion
Gear Ratio given Speed
Go Gear Ratio of Spur Gear = Speed of Spur Pinion/Speed of Spur Gear
Diametral Pitch of Gear given Circular Pitch
Go Diametral Pitch of Spur Gear = pi/Circular Pitch of Spur Gear
Outer Diameter of Hub of Large Size Gear
Go Outer Diameter of Spur Gear Hub = 2*Diameter of Spur Gear Shaft
Thickness of Rim of Large Size Gear
Go Thickness of Spur Gear Rim = 0.56*Circular Pitch of Spur Gear
Module of Gear given Diametral Pitch
Go Module of Spur Gear = 1/Diametral Pitch of Spur Gear

Service factor for motor Formula

Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear
Ks = Mtstart/MTrated

What is a gear?

Gears are defined as toothed wheels or multilobed-cams, which transmit power and motion from one shaft to another by means of successive engagement of teeth.

How to Calculate Service factor for motor?

Service factor for motor calculator uses Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear to calculate the Service Factor for Spur Gear, The Service factor for motor formula is defined as the ratio of the starting torque to the rated torque. Service Factor for Spur Gear is denoted by Ks symbol.

How to calculate Service factor for motor using this online calculator? To use this online calculator for Service factor for motor, enter Starting Torque on Spur Gear (Mtstart) & Rated Torque of Spur Gear (MTrated) and hit the calculate button. Here is how the Service factor for motor calculation can be explained with given input values -> 1.211538 = 31.5/26.

FAQ

What is Service factor for motor?
The Service factor for motor formula is defined as the ratio of the starting torque to the rated torque and is represented as Ks = Mtstart/MTrated or Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear. Starting Torque on Spur Gear is the torque that is acting onto the spur gear to make it start rotating & The Rated Torque of Spur Gear is the torque capacity for which the gear is rated.
How to calculate Service factor for motor?
The Service factor for motor formula is defined as the ratio of the starting torque to the rated torque is calculated using Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear. To calculate Service factor for motor, you need Starting Torque on Spur Gear (Mtstart) & Rated Torque of Spur Gear (MTrated). With our tool, you need to enter the respective value for Starting Torque on Spur Gear & Rated Torque of Spur Gear and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Service Factor for Spur Gear?
In this formula, Service Factor for Spur Gear uses Starting Torque on Spur Gear & Rated Torque of Spur Gear. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Service Factor for Spur Gear = Maximum Torque on Spur Gear/Rated Torque of Spur Gear
  • Service Factor for Spur Gear = Maximum Tangential Force on Spur Gear/Tangential Force on Spur Gear
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