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Coefficient of Friction of Roller Contact Bearing Formula

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Coefficient of friction for bearing is the ratio defining the force that resists the motion of the oil in relation to another body in contact with it. Check FAQs

μ = 2 \cdot \frac{M t}{d \cdot W}

μ - Coefficient of Friction for Bearing?M_t - Friction Moment on Bearing?d - Bore Diameter of Bearing?W - Load Acting on Bearing?

Coefficient of Friction of Roller Contact Bearing Example

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Here is how the Coefficient of Friction of Roller Contact Bearing equation looks like with Values.

Here is how the Coefficient of Friction of Roller Contact Bearing equation looks like with Units.

Here is how the Coefficient of Friction of Roller Contact Bearing equation looks like.

0.0044 = 2 \cdot \frac{120}{30 \cdot 1800}

0.0044 = 2 \cdot \frac{120N*mm}{30mm \cdot 1800N}

0.0044 = 2 \cdot \frac{120}{30 \cdot 1800}

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Coefficient of Friction of Roller Contact Bearing Solution

Follow our step by step solution on how to calculate Coefficient of Friction of Roller Contact Bearing?

FIRST Step Consider the formula

μ = 2 \cdot \frac{M t}{d \cdot W}

Next Step Substitute values of Variables

∴

μ = 2 \cdot \frac{120N*mm}{30mm \cdot 1800N}

Next Step Convert Units

∴

μ = 2 \cdot \frac{0.12N*m}{0.03m \cdot 1800N}

Next Step Prepare to Evaluate

∴

μ = 2 \cdot \frac{0.12}{0.03 \cdot 1800}

Next Step Evaluate

∴

μ = 0.00444444444444444

LAST Step Rounding Answer

∴

μ = 0.0044

Coefficient of Friction of Roller Contact Bearing Formula Elements

Variables

Coefficient of Friction for Bearing

Coefficient of friction for bearing is the ratio defining the force that resists the motion of the oil in relation to another body in contact with it.

Symbol: μ

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Coefficient of Friction for Bearing

Friction Moment on Bearing

Friction moment on bearing is the moment acting onto the bearing races due to the friction between their rotating surfaces.

Symbol: M_t

Measurement: TorqueUnit: N*mm

Note: Value should be greater than 0.

Formulas to find Friction Moment on Bearing

Bore Diameter of Bearing

Bore Diameter of bearing is the inner diameter of a bearing, referred to as inner diameter.

Symbol: d

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Bore Diameter of Bearing

Load Acting on Bearing

Load acting on bearing is the force acting onto the bearing.

Symbol: W

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Load Acting on Bearing

Other formulas in Rolling Contact Bearing Configuration category

Go Radial Load on Bearing given Race Rotation Factor

F r = \frac{P eq - (Y \cdot F a)}{X \cdot V}

Go Axial Thrust Load on Bearing given Race Rotation Factor

F a = \frac{P eq - (X \cdot V \cdot F r)}{Y}

Go Race Rotation Factor of Roller Contact Bearing

V = \frac{P eq - (Y \cdot F a)}{X \cdot F r}

Go Radial Factor of Roller Contact Bearing given Race Rotation Factor

X = \frac{P eq - (Y \cdot F a)}{V \cdot F r}

How to Evaluate Coefficient of Friction of Roller Contact Bearing?

Coefficient of Friction of Roller Contact Bearing evaluator uses Coefficient of Friction for Bearing = 2*Friction Moment on Bearing/(Bore Diameter of Bearing*Load Acting on Bearing) to evaluate the Coefficient of Friction for Bearing, Coefficient of Friction of Roller Contact Bearing is the value of the friction coefficient between the surface of the bearing and the rollers. Coefficient of friction (COF) is a dimensionless number that is defined as the ratio between friction force and normal force. Coefficient of Friction for Bearing is denoted by μ symbol.

How to evaluate Coefficient of Friction of Roller Contact Bearing using this online evaluator? To use this online evaluator for Coefficient of Friction of Roller Contact Bearing, enter Friction Moment on Bearing (M_t), Bore Diameter of Bearing (d) & Load Acting on Bearing (W) and hit the calculate button.

FAQs on Coefficient of Friction of Roller Contact Bearing

What is the formula to find Coefficient of Friction of Roller Contact Bearing?

The formula of Coefficient of Friction of Roller Contact Bearing is expressed as Coefficient of Friction for Bearing = 2*Friction Moment on Bearing/(Bore Diameter of Bearing*Load Acting on Bearing). Here is an example- 0.004444 = 2*0.12/(0.03*1800).

How to calculate Coefficient of Friction of Roller Contact Bearing?

With Friction Moment on Bearing (M_t), Bore Diameter of Bearing (d) & Load Acting on Bearing (W) we can find Coefficient of Friction of Roller Contact Bearing using the formula - Coefficient of Friction for Bearing = 2*Friction Moment on Bearing/(Bore Diameter of Bearing*Load Acting on Bearing).

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Coefficient of Friction of Roller Contact Bearing Formula

Coefficient of Friction of Roller Contact Bearing Example

Coefficient of Friction of Roller Contact Bearing Solution

Coefficient of Friction of Roller Contact Bearing Formula Elements

Other formulas in Rolling Contact Bearing Configuration category

How to Evaluate Coefficient of Friction of Roller Contact Bearing?

FAQs on Coefficient of Friction of Roller Contact Bearing

Variable Name