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Mean Diameter of Power Screw is the average diameter of the bearing surface - or more accurately, twice the average distance from the centreline of the thread to the bearing surface. Check FAQs
dm=d-0.5p
dm - Mean Diameter of Power Screw?d - Nominal diameter of screw?p - Pitch of power screw thread?

Mean Diameter of Power Screw Example

With values
With units
Only example

Here is how the Mean Diameter of Power Screw equation looks like with Values.

Here is how the Mean Diameter of Power Screw equation looks like with Units.

Here is how the Mean Diameter of Power Screw equation looks like.

46.1Edit=50Edit-0.57.8Edit
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Mean Diameter of Power Screw Solution

Follow our step by step solution on how to calculate Mean Diameter of Power Screw?

FIRST Step Consider the formula
dm=d-0.5p
Next Step Substitute values of Variables
dm=50mm-0.57.8mm
Next Step Convert Units
dm=0.05m-0.50.0078m
Next Step Prepare to Evaluate
dm=0.05-0.50.0078
Next Step Evaluate
dm=0.0461m
LAST Step Convert to Output's Unit
dm=46.1mm

Mean Diameter of Power Screw Formula Elements

Variables
Mean Diameter of Power Screw
Mean Diameter of Power Screw is the average diameter of the bearing surface - or more accurately, twice the average distance from the centreline of the thread to the bearing surface.
Symbol: dm
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Nominal diameter of screw
Nominal diameter of screw is defined as the diameter of the cylinder touching the external threads of the screw.
Symbol: d
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Pitch of power screw thread
Pitch of power screw thread is the distance between screw threads and is commonly used with inch-sized products and specified as threads per inch.
Symbol: p
Measurement: LengthUnit: mm
Note: Value should be greater than 0.

Other Formulas to find Mean Diameter of Power Screw

​Go Mean diameter of Screw given Helix Angle
dm=Lπtan(α)

Other formulas in Design of Screw and Nut category

​Go Core Diameter of Power Screw
dc=d-p
​Go Nominal Diameter of Power Screw
d=dc+p
​Go Pitch of Power Screw
p=d-dc
​Go Nominal Diameter of Power Screw given Mean Diameter
d=dm+(0.5p)

How to Evaluate Mean Diameter of Power Screw?

Mean Diameter of Power Screw evaluator uses Mean Diameter of Power Screw = Nominal diameter of screw-0.5*Pitch of power screw thread to evaluate the Mean Diameter of Power Screw, The Mean Diameter of Power Screw formula is defined as the average diameter of the bearing surface - or more accurately, twice the average distance from the centreline of the thread to the bearing surface. Mean Diameter of Power Screw is denoted by dm symbol.

How to evaluate Mean Diameter of Power Screw using this online evaluator? To use this online evaluator for Mean Diameter of Power Screw, enter Nominal diameter of screw (d) & Pitch of power screw thread (p) and hit the calculate button.

FAQs on Mean Diameter of Power Screw

What is the formula to find Mean Diameter of Power Screw?
The formula of Mean Diameter of Power Screw is expressed as Mean Diameter of Power Screw = Nominal diameter of screw-0.5*Pitch of power screw thread. Here is an example- 46100 = 0.05-0.5*0.0078.
How to calculate Mean Diameter of Power Screw?
With Nominal diameter of screw (d) & Pitch of power screw thread (p) we can find Mean Diameter of Power Screw using the formula - Mean Diameter of Power Screw = Nominal diameter of screw-0.5*Pitch of power screw thread.
What are the other ways to Calculate Mean Diameter of Power Screw?
Here are the different ways to Calculate Mean Diameter of Power Screw-
  • Mean Diameter of Power Screw=Lead of Power Screw/(pi*tan(Helix angle of screw))OpenImg
Can the Mean Diameter of Power Screw be negative?
No, the Mean Diameter of Power Screw, measured in Length cannot be negative.
Which unit is used to measure Mean Diameter of Power Screw?
Mean Diameter of Power Screw is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Mean Diameter of Power Screw can be measured.
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