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Effective Gear Ratio Formula

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Effective Gear Ratio is defined as ratio of old tire size to the new tire size and as a result it incorporates the tire size. Check FAQs

G eff = \frac{D′ o}{D n} \cdot i g

G_eff - Effective Gear Ratio?D′_o - Old Tire Diameter?D_n - New Tire Diameter?i_g - Gear Ratio of Transmission?

Effective Gear Ratio Example

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Here is how the Effective Gear Ratio equation looks like with Values.

Here is how the Effective Gear Ratio equation looks like with Units.

Here is how the Effective Gear Ratio equation looks like.

2.7432 = \frac{0.71}{0.66} \cdot 2.55

2.7432 = \frac{0.71m}{0.66m} \cdot 2.55

2.7432 = \frac{0.71}{0.66} \cdot 2.55

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Effective Gear Ratio Solution

Follow our step by step solution on how to calculate Effective Gear Ratio?

FIRST Step Consider the formula

G eff = \frac{D′ o}{D n} \cdot i g

Next Step Substitute values of Variables

∴

G eff = \frac{0.71m}{0.66m} \cdot 2.55

Next Step Prepare to Evaluate

∴

G eff = \frac{0.71}{0.66} \cdot 2.55

Next Step Evaluate

∴

G eff = 2.74318181818182

LAST Step Rounding Answer

∴

G eff = 2.7432

Effective Gear Ratio Formula Elements

Variables

Effective Gear Ratio

Effective Gear Ratio is defined as ratio of old tire size to the new tire size and as a result it incorporates the tire size.

Symbol: G_eff

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Effective Gear Ratio

Old Tire Diameter

Old Tire Diameter is defined as the original diameter of the tire before replacing it with a newer one.

Symbol: D′_o

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Old Tire Diameter

New Tire Diameter

New Tire Diameter is defined as the diameter of the tire which replaces the old tire of the vehicle.

Symbol: D_n

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find New Tire Diameter

Gear Ratio of Transmission

Gear Ratio of Transmission is the ratio between the revolutions of the engine crankshaft and the revolutions of the shaft which comes out of the gearbox.

Symbol: i_g

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Gear Ratio of Transmission

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Go Axial Force of Multiplate Clutch using Uniform Wear Theory

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Go Gear Step

φ = \frac{i n-1}{i n}

How to Evaluate Effective Gear Ratio?

Effective Gear Ratio evaluator uses Effective Gear Ratio = Old Tire Diameter/New Tire Diameter*Gear Ratio of Transmission to evaluate the Effective Gear Ratio, The Effective gear ratio formula is defined as the ratio of old tire size to the new tire size and as a result it incorporates the tire size. Effective Gear Ratio is denoted by G_eff symbol.

How to evaluate Effective Gear Ratio using this online evaluator? To use this online evaluator for Effective Gear Ratio, enter Old Tire Diameter (D′_o), New Tire Diameter (D_n) & Gear Ratio of Transmission (i_g) and hit the calculate button.

FAQs on Effective Gear Ratio

What is the formula to find Effective Gear Ratio?

The formula of Effective Gear Ratio is expressed as Effective Gear Ratio = Old Tire Diameter/New Tire Diameter*Gear Ratio of Transmission. Here is an example- 2.743182 = 0.71/0.66*2.55.

How to calculate Effective Gear Ratio?

With Old Tire Diameter (D′_o), New Tire Diameter (D_n) & Gear Ratio of Transmission (i_g) we can find Effective Gear Ratio using the formula - Effective Gear Ratio = Old Tire Diameter/New Tire Diameter*Gear Ratio of Transmission.

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Effective Gear Ratio Formula

Effective Gear Ratio Example

Effective Gear Ratio Solution

Effective Gear Ratio Formula Elements

Other formulas in Driveline category

How to Evaluate Effective Gear Ratio?

FAQs on Effective Gear Ratio

Variable Name