Anshika Arya
National Institute Of Technology (NIT), Hamirpur
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2 Other formulas that calculate the same Output

Helix Angle for multi-threaded screw
Helix Angle=atan((Number of Threads*Pitch)/(pi*Mean diameter of Screw)) GO
Helix Angle for single threaded screw
Helix Angle=atan(Pitch/(pi*Mean diameter of Screw)) GO

Helix Angle Formula

Helix Angle=atan(Lead of Screw/Circumference of Screw)
More formulas
Lead of Screw GO
Helix Angle for single threaded screw GO
Helix Angle for multi-threaded screw GO
Force at circumference of the screw when weight of load, helix angle and coefficient of friction is known GO
Force at circumference of the screw when weight of load, helix angle and limiting angle is known GO
Mean radius of the collar GO
Torque required to overcome friction between screw and nut GO
Torque required to overcome friction at collar GO
Force required to lower the load by a screw jack when weight of load, helix angle and coefficient of friction is known GO
Force required to lower the load by a screw jack when weight of load, helix angle and limiting angle is known GO
Torque required to overcome friction between screw and nut(lowering load) GO
Torque required to overcome friction between screw and nut(lowering load) GO
Efficiency of screw jack when only screw friction considered GO
Ideal effort to raise the load by screw jack GO
Efficiency of screw jack when screw friction as well as collar friction considered GO
Maximum efficiency of screw a jack GO
Pressure over bearing area of flat pivot bearing GO
Total frictional torque on flat pivot bearing considering uniform pressure GO
Total frictional torque on flat pivot bearing considering uniform wear GO
Total vertical load transmitted to conical pivot bearing (uniform pressure) GO
Total frictional torque on conical pivot bearing considering uniform pressure GO
Total frictional torque on conical pivot bearing considering uniform pressure when slant height of cone is given GO
Total frictional torque on conical pivot bearing considering uniform wear when slant height of cone GO
Total frictional torque on conical pivot bearing considering uniform wear GO
Total frictional torque on truncated conical pivot bearing considering uniform pressure GO
Total frictional torque on truncated conical pivot bearing considering uniform wear GO

What is helix angle in thread?

The thread angle is the angle produced between the threads. For a straight thread, where the lead of the thread and the pitch diameter circle circumference form a right angled triangle, the helix angle is the angle opposite the lead.

How do you find the helix angle?

In terms specific to screws, the helix angle can be found by unraveling the helix from the screw, representing the section as a right triangle, and calculating the angle that is formed.

How to Calculate Helix Angle?

Helix Angle calculator uses Helix Angle=atan(Lead of Screw/Circumference of Screw) to calculate the Helix Angle, Helix Angle is the angle produced between the threads. Helix Angle and is denoted by α symbol.

How to calculate Helix Angle using this online calculator? To use this online calculator for Helix Angle, enter Lead of Screw (L) and Circumference of Screw (C) and hit the calculate button. Here is how the Helix Angle calculation can be explained with given input values -> 26.56505 = atan(10/20).

FAQ

What is Helix Angle?
Helix Angle is the angle produced between the threads and is represented as α=atan(L/C) or Helix Angle=atan(Lead of Screw/Circumference of Screw). Lead of Screw is the linear travel the nut makes per one screw revolution and is how ball screws are typically specified and Circumference of Screw is calculated by measuring the diameter of the screw and multiplying by pi.
How to calculate Helix Angle?
Helix Angle is the angle produced between the threads is calculated using Helix Angle=atan(Lead of Screw/Circumference of Screw). To calculate Helix Angle, you need Lead of Screw (L) and Circumference of Screw (C). With our tool, you need to enter the respective value for Lead of Screw and Circumference of Screw and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Helix Angle?
In this formula, Helix Angle uses Lead of Screw and Circumference of Screw. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Helix Angle=atan(Pitch/(pi*Mean diameter of Screw))
  • Helix Angle=atan((Number of Threads*Pitch)/(pi*Mean diameter of Screw))
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