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Ratio Factor for External Gears Formula

GoRatio Factor for Internal Gears Formula

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The Ratio Factor for Gear is the ratio of twice gear teeth to the sum of gear and pinion of gear teeth, considering a formative number of teeth. Check FAQs

Q g = 2 \cdot \frac{Z g}{Z g + z p}

Q_g - Ratio Factor?Z_g - Number of Teeth of Gear?z_p - Number of Teeth on Pinion?

Ratio Factor for External Gears Example

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Here is how the Ratio Factor for External Gears equation looks like with Values.

Here is how the Ratio Factor for External Gears equation looks like with Units.

Here is how the Ratio Factor for External Gears equation looks like.

1.4286 = 2 \cdot \frac{30}{30 + 12}

1.4286 = 2 \cdot \frac{30}{30 + 12}

1.4286 = 2 \cdot \frac{30}{30 + 12}

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Ratio Factor for External Gears Solution

Follow our step by step solution on how to calculate Ratio Factor for External Gears?

FIRST Step Consider the formula

Q g = 2 \cdot \frac{Z g}{Z g + z p}

Next Step Substitute values of Variables

∴

Q g = 2 \cdot \frac{30}{30 + 12}

Next Step Prepare to Evaluate

∴

Q g = 2 \cdot \frac{30}{30 + 12}

Next Step Evaluate

∴

Q g = 1.42857142857143

LAST Step Rounding Answer

∴

Q g = 1.4286

Ratio Factor for External Gears Formula Elements

Variables

Ratio Factor

The Ratio Factor for Gear is the ratio of twice gear teeth to the sum of gear and pinion of gear teeth, considering a formative number of teeth.

Symbol: Q_g

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Ratio Factor

Number of Teeth of Gear

The number of teeth of Gear is defined as the number of teeth on gear.

Symbol: Z_g

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Teeth of Gear

Number of Teeth on Pinion

Number of Teeth on Pinion is the total number of teeth on the periphery of the smaller gear or also known as the pinion.

Symbol: z_p

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Teeth on Pinion

Other Formulas to find Ratio Factor

Go Ratio Factor for Internal Gears

Q g = 2 \cdot \frac{Z g}{Z g - z p}

Other formulas in Parameters of Spur Gear category

Go Circular Pitch of Gear given Diameter and Number of Teeth

P c = π \cdot \frac{d}{z}

Go Diametral Pitch of Gear given Number of teeth and Pitch Circle Diameter

P d = \frac{z}{d}

Go Diametral Pitch of Gear given Circular Pitch

P d = \frac{π}{P c}

Go Module of Gear given Diametral Pitch

m = \frac{1}{P d}

How to Evaluate Ratio Factor for External Gears?

Ratio Factor for External Gears evaluator uses Ratio Factor = 2*Number of Teeth of Gear/(Number of Teeth of Gear+Number of Teeth on Pinion) to evaluate the Ratio Factor, Ratio factor for external gears is defined as the ratio of number of teeth on gear to the sum of number of teeth on gear and pinion. Ratio Factor is denoted by Q_g symbol.

How to evaluate Ratio Factor for External Gears using this online evaluator? To use this online evaluator for Ratio Factor for External Gears, enter Number of Teeth of Gear (Z_g) & Number of Teeth on Pinion (z_p) and hit the calculate button.

FAQs on Ratio Factor for External Gears

What is the formula to find Ratio Factor for External Gears?

The formula of Ratio Factor for External Gears is expressed as Ratio Factor = 2*Number of Teeth of Gear/(Number of Teeth of Gear+Number of Teeth on Pinion). Here is an example- 1.428571 = 2*30/(30+12).

How to calculate Ratio Factor for External Gears?

With Number of Teeth of Gear (Z_g) & Number of Teeth on Pinion (z_p) we can find Ratio Factor for External Gears using the formula - Ratio Factor = 2*Number of Teeth of Gear/(Number of Teeth of Gear+Number of Teeth on Pinion).

What are the other ways to Calculate Ratio Factor?

Here are the different ways to Calculate Ratio Factor-

Ratio Factor=2*Number of Teeth of Gear/(Number of Teeth of Gear-Number of Teeth on Pinion)

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Ratio Factor for External Gears Formula

​GoRatio Factor for Internal Gears Formula

Ratio Factor for External Gears Example

Ratio Factor for External Gears Solution

Ratio Factor for External Gears Formula Elements

Other Formulas to find Ratio Factor

Other formulas in Parameters of Spur Gear category

How to Evaluate Ratio Factor for External Gears?

FAQs on Ratio Factor for External Gears

Variable Name

GoRatio Factor for Internal Gears Formula