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The Coefficient of Friction for Collar is the ratio defining the force that resists the motion of one body in relation to another body in contact with it. Check FAQs
μcollar=3Tc((Do2)-(Di2))W((Do3)-(Di3))
μcollar - Coefficient of Friction for Collar?Tc - Collar Friction Torque for Power Screw?Do - Outer Diameter of Collar?Di - Inner Diameter of Collar?W - Load on screw?

Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory Example

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Here is how the Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory equation looks like with Values.

Here is how the Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory equation looks like with Units.

Here is how the Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory equation looks like.

0.1441Edit=310000Edit((100Edit2)-(60Edit2))1700Edit((100Edit3)-(60Edit3))
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Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory Solution

Follow our step by step solution on how to calculate Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory?

FIRST Step Consider the formula
μcollar=3Tc((Do2)-(Di2))W((Do3)-(Di3))
Next Step Substitute values of Variables
μcollar=310000N*mm((100mm2)-(60mm2))1700N((100mm3)-(60mm3))
Next Step Convert Units
μcollar=310N*m((0.1m2)-(0.06m2))1700N((0.1m3)-(0.06m3))
Next Step Prepare to Evaluate
μcollar=310((0.12)-(0.062))1700((0.13)-(0.063))
Next Step Evaluate
μcollar=0.14405762304922
LAST Step Rounding Answer
μcollar=0.1441

Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory Formula Elements

Variables
Coefficient of Friction for Collar
The Coefficient of Friction for Collar is the ratio defining the force that resists the motion of one body in relation to another body in contact with it.
Symbol: μcollar
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Collar Friction Torque for Power Screw
Collar Friction Torque for Power Screw is the additional torque required to account for the friction between the Collar and Load of the power screw.
Symbol: Tc
Measurement: TorqueUnit: N*mm
Note: Value should be greater than 0.
Outer Diameter of Collar
The Outer Diameter of Collar is the actual outer diameter of the collar.
Symbol: Do
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Inner Diameter of Collar
The Inner Diameter of Collar is the actual inner diameter of the collar.
Symbol: Di
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Load on screw
Load on screw is defined as the weight (force) of the body that is acted upon the screw threads.
Symbol: W
Measurement: ForceUnit: N
Note: Value should be greater than 0.

Other Formulas to find Coefficient of Friction for Collar

​Go Coefficient of Friction at Collar of Screw according to Uniform Wear Theory
μcollar=4TcW((Do)+(Di))

Other formulas in Collar Friction category

​Go Load on Screw given Collar Friction Torque according to Uniform Pressure Theory
W=3Tc((Do2)-(Di2))μcollar((Do3)-(Di3))
​Go Collar Friction Torque for Screw according to Uniform Pressure Theory
Tc=μcollarW((R13)-(R23))(32)((R12)-(R22))
​Go Load on Screw given Collar Friction Torque according to Uniform Wear Theory
W=4Tcμcollar((Do)+(Di))
​Go Collar Friction Torque for Screw according to Uniform Wear Theory
Tc=μcollarWR1+R22

How to Evaluate Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory?

Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory evaluator uses Coefficient of Friction for Collar = (3*Collar Friction Torque for Power Screw*((Outer Diameter of Collar^2)-(Inner Diameter of Collar^2)))/(Load on screw*((Outer Diameter of Collar^3)-(Inner Diameter of Collar^3))) to evaluate the Coefficient of Friction for Collar, Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory is the ratio defining the force that resists the motion of one body in relation to another body in contact with it. Coefficient of Friction for Collar is denoted by μcollar symbol.

How to evaluate Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory using this online evaluator? To use this online evaluator for Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory, enter Collar Friction Torque for Power Screw (Tc), Outer Diameter of Collar (Do), Inner Diameter of Collar (Di) & Load on screw (W) and hit the calculate button.

FAQs on Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory

What is the formula to find Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory?
The formula of Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory is expressed as Coefficient of Friction for Collar = (3*Collar Friction Torque for Power Screw*((Outer Diameter of Collar^2)-(Inner Diameter of Collar^2)))/(Load on screw*((Outer Diameter of Collar^3)-(Inner Diameter of Collar^3))). Here is an example- 0.144058 = (3*10*((0.1^2)-(0.06^2)))/(1700*((0.1^3)-(0.06^3))).
How to calculate Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory?
With Collar Friction Torque for Power Screw (Tc), Outer Diameter of Collar (Do), Inner Diameter of Collar (Di) & Load on screw (W) we can find Coefficient of Friction at Collar of Screw according to Uniform Pressure Theory using the formula - Coefficient of Friction for Collar = (3*Collar Friction Torque for Power Screw*((Outer Diameter of Collar^2)-(Inner Diameter of Collar^2)))/(Load on screw*((Outer Diameter of Collar^3)-(Inner Diameter of Collar^3))).
What are the other ways to Calculate Coefficient of Friction for Collar?
Here are the different ways to Calculate Coefficient of Friction for Collar-
  • Coefficient of Friction for Collar=(4*Collar Friction Torque for Power Screw)/(Load on screw*((Outer Diameter of Collar)+(Inner Diameter of Collar)))OpenImg
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