Nominal Life of Roller Contact Bearing Formula

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Nominal Life in Millions of Kilometers is defined as the distance traveled by the wheel in million km. Check FAQs
L10s=L101000πD
L10s - Nominal Life in Millions of Kilometers?L10 - Rated Bearing Life?D - Train Wheel Diameter?π - Archimedes' constant?

Nominal Life of Roller Contact Bearing Example

With values
With units
Only example

Here is how the Nominal Life of Roller Contact Bearing equation looks like with Values.

Here is how the Nominal Life of Roller Contact Bearing equation looks like with Units.

Here is how the Nominal Life of Roller Contact Bearing equation looks like.

0.3981Edit=144Edit10003.1416880Edit
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Nominal Life of Roller Contact Bearing Solution

Follow our step by step solution on how to calculate Nominal Life of Roller Contact Bearing?

FIRST Step Consider the formula
L10s=L101000πD
Next Step Substitute values of Variables
L10s=1441000π880mm
Next Step Substitute values of Constants
L10s=14410003.1416880mm
Next Step Convert Units
L10s=14410003.14160.88m
Next Step Prepare to Evaluate
L10s=14410003.14160.88
Next Step Evaluate
L10s=0.398102621062899
LAST Step Rounding Answer
L10s=0.3981

Nominal Life of Roller Contact Bearing Formula Elements

Variables
Constants
Nominal Life in Millions of Kilometers
Nominal Life in Millions of Kilometers is defined as the distance traveled by the wheel in million km.
Symbol: L10s
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Rated Bearing Life
Rated Bearing Life is defined as the total number of million revolutions the bearing rotates before failure.
Symbol: L10
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Train Wheel Diameter
Train Wheel Diameter is the distance measured across the face of the wheel, from bead seat to bead seat.
Symbol: D
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Archimedes' constant
Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.
Symbol: π
Value: 3.14159265358979323846264338327950288

Other formulas in Rolling Contact Bearing Configuration category

​Go Radial Load on Bearing given Race Rotation Factor
Fr=Peq-(YFa)XV
​Go Axial Thrust Load on Bearing given Race Rotation Factor
Fa=Peq-(XVFr)Y
​Go Race Rotation Factor of Roller Contact Bearing
V=Peq-(YFa)XFr
​Go Radial Factor of Roller Contact Bearing given Race Rotation Factor
X=Peq-(YFa)VFr

How to Evaluate Nominal Life of Roller Contact Bearing?

Nominal Life of Roller Contact Bearing evaluator uses Nominal Life in Millions of Kilometers = Rated Bearing Life/(1000/(pi*Train Wheel Diameter)) to evaluate the Nominal Life in Millions of Kilometers, Nominal Life of Roller Contact Bearing is essentially the length of time a bearing can be expected to perform as required in predefined operating conditions. It is based primarily on the probable number of rotations a bearing can complete before it starts showing symptoms of fatigue, such as spalling or cracking due to stress. Nominal Life in Millions of Kilometers is denoted by L10s symbol.

How to evaluate Nominal Life of Roller Contact Bearing using this online evaluator? To use this online evaluator for Nominal Life of Roller Contact Bearing, enter Rated Bearing Life (L10) & Train Wheel Diameter (D) and hit the calculate button.

FAQs on Nominal Life of Roller Contact Bearing

What is the formula to find Nominal Life of Roller Contact Bearing?
The formula of Nominal Life of Roller Contact Bearing is expressed as Nominal Life in Millions of Kilometers = Rated Bearing Life/(1000/(pi*Train Wheel Diameter)). Here is an example- 0.398103 = 144/(1000/(pi*0.88)).
How to calculate Nominal Life of Roller Contact Bearing?
With Rated Bearing Life (L10) & Train Wheel Diameter (D) we can find Nominal Life of Roller Contact Bearing using the formula - Nominal Life in Millions of Kilometers = Rated Bearing Life/(1000/(pi*Train Wheel Diameter)). This formula also uses Archimedes' constant .
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