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Service factor for motor Formula

GoService Factor for Gear given Torque Formula

GoService Factor using Tangential Force Formula

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Service Factor for Spur Gear is defined as the ratio of the torque capacity and the rated torque value. Check FAQs

K s = \frac{M sτ}{M τ}

K_s - Service Factor for Spur Gear?M_sτ - Starting Torque on Spur Gear?M_τ - Rated Torque of Spur Gear?

Service factor for motor Example

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Here is how the Service factor for motor equation looks like with Values.

Here is how the Service factor for motor equation looks like with Units.

Here is how the Service factor for motor equation looks like.

1.2115 = \frac{31500}{26000}

1.2115 = \frac{31500N*mm}{26000N*mm}

1.2115 = \frac{31500}{26000}

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Service factor for motor Solution

Follow our step by step solution on how to calculate Service factor for motor?

FIRST Step Consider the formula

K s = \frac{M sτ}{M τ}

Next Step Substitute values of Variables

∴

K s = \frac{31500N*mm}{26000N*mm}

Next Step Convert Units

∴

K s = \frac{31.5N*m}{26N*m}

Next Step Prepare to Evaluate

∴

K s = \frac{31.5}{26}

Next Step Evaluate

∴

K s = 1.21153846153846

LAST Step Rounding Answer

∴

K s = 1.2115

Service factor for motor Formula Elements

Variables

Service Factor for Spur Gear

Service Factor for Spur Gear is defined as the ratio of the torque capacity and the rated torque value.

Symbol: K_s

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.99.

Formulas to find Service Factor for Spur Gear

Starting Torque on Spur Gear

Starting Torque on Spur Gear is the torque that is acting onto the spur gear to make it start rotating.

Symbol: M_sτ

Measurement: TorqueUnit: N*mm

Note: Value should be greater than 0.

Formulas to find Starting Torque on Spur Gear

Rated Torque of Spur Gear

The Rated Torque of Spur Gear is the torque capacity for which the gear is rated.

Symbol: M_τ

Measurement: TorqueUnit: N*mm

Note: Value should be greater than 0.

Formulas to find Rated Torque of Spur Gear

Other Formulas to find Service Factor for Spur Gear

Go Service Factor for Gear given Torque

K s = \frac{M Tmax}{M τ}

Go Service Factor using Tangential Force

K s = \frac{P tmax}{P t}

Other formulas in Dynamics of Spur Gear category

Go Torque Transmitted by Gear given Tangential Force and Pitch Circle Diameter

M t = P t \cdot \frac{d}{2}

Go Tangential Force on Gear given Torque and Pitch Circle Diameter

P t = 2 \cdot \frac{M t}{d}

Go Radial Force of Gear given Tangential Force and Pressure Angle

P r = P t \cdot \tan (Φ)

Go Tangential Force on Gear given Radial Force and Pressure Angle

P t = P r \cdot \cot (Φ)

How to Evaluate Service factor for motor?

Service factor for motor evaluator uses Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear to evaluate 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 K_s symbol.

How to evaluate Service factor for motor using this online evaluator? To use this online evaluator for Service factor for motor, enter Starting Torque on Spur Gear (M_sτ) & Rated Torque of Spur Gear (M_τ) and hit the calculate button.

FAQs on Service factor for motor

What is the formula to find Service factor for motor?

The formula of Service factor for motor is expressed as Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear. Here is an example- 1.211538 = 31.5/26.

How to calculate Service factor for motor?

With Starting Torque on Spur Gear (M_sτ) & Rated Torque of Spur Gear (M_τ) we can find Service factor for motor using the formula - Service Factor for Spur Gear = Starting Torque on Spur Gear/Rated Torque of Spur Gear.

What are the other ways to Calculate Service Factor for Spur Gear?

Here are the different ways to Calculate Service Factor for Spur Gear-

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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