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Helix Angle of Helical Gear is the angle between any helical gear and an axial line on its right, circular cylinder, or cone. Check FAQs
ψ=acos(zmnd)
ψ - Helix Angle of Helical Gear?z - Number of Teeth on Helical Gear?mn - Normal Module of Helical Gear?d - Diameter of Pitch Circle of Helical Gear?

Helix Angle of Helical Gear given Pitch Circle Diameter Example

With values
With units
Only example

Here is how the Helix Angle of Helical Gear given Pitch Circle Diameter equation looks like with Values.

Here is how the Helix Angle of Helical Gear given Pitch Circle Diameter equation looks like with Units.

Here is how the Helix Angle of Helical Gear given Pitch Circle Diameter equation looks like.

19.8343Edit=acos(37Edit3Edit118Edit)
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Helix Angle of Helical Gear given Pitch Circle Diameter Solution

Follow our step by step solution on how to calculate Helix Angle of Helical Gear given Pitch Circle Diameter?

FIRST Step Consider the formula
ψ=acos(zmnd)
Next Step Substitute values of Variables
ψ=acos(373mm118mm)
Next Step Convert Units
ψ=acos(370.003m0.118m)
Next Step Prepare to Evaluate
ψ=acos(370.0030.118)
Next Step Evaluate
ψ=0.346173396306358rad
Next Step Convert to Output's Unit
ψ=19.8342745880677°
LAST Step Rounding Answer
ψ=19.8343°

Helix Angle of Helical Gear given Pitch Circle Diameter Formula Elements

Variables
Functions
Helix Angle of Helical Gear
Helix Angle of Helical Gear is the angle between any helical gear and an axial line on its right, circular cylinder, or cone.
Symbol: ψ
Measurement: AngleUnit: °
Note: Value should be greater than 0.
Number of Teeth on Helical Gear
Number of Teeth on Helical Gear is defined as the number of teeth (which mesh with another compatible toothed part to transmit or convert torque and speed) on a specimen or part under consideration.
Symbol: z
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Normal Module of Helical Gear
The Normal Module of Helical Gear is defined as the unit of size that indicates how big or small is the helical gear.
Symbol: mn
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Diameter of Pitch Circle of Helical Gear
Diameter of Pitch Circle of Helical Gear is the diameter of the pitch circle of a gear that touches the meshing gear's pitch circle.
Symbol: d
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
cos
Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.
Syntax: cos(Angle)
acos
The inverse cosine function, is the inverse function of the cosine function. It is the function that takes a ratio as an input and returns the angle whose cosine is equal to that ratio.
Syntax: acos(Number)

Other Formulas to find Helix Angle of Helical Gear

​Go Helix Angle of Helical Gear given Normal Circular Pitch
ψ=acos(PNp)
​Go Helix Angle of Helical Gear given Normal Module
ψ=acos(mnm)
​Go Helix Angle of Helical Gear given Axial Pitch
ψ=atan(ppa)
​Go Helix Angle of Helical Gear given Pressure Angle
ψ=acos(tan(αn)tan(α))

Other formulas in Helix Geometry category

​Go Normal Circular Pitch of Helical Gear
PN=pcos(ψ)
​Go Pitch of Helical Gear given Normal Circular Pitch
p=PNcos(ψ)
​Go Transverse Diametrical Pitch of Helical Gear given Transverse Module
P=1m
​Go Axial Pitch of Helical Gear given Helix Angle
pa=ptan(ψ)

How to Evaluate Helix Angle of Helical Gear given Pitch Circle Diameter?

Helix Angle of Helical Gear given Pitch Circle Diameter evaluator uses Helix Angle of Helical Gear = acos(Number of Teeth on Helical Gear*Normal Module of Helical Gear/Diameter of Pitch Circle of Helical Gear) to evaluate the Helix Angle of Helical Gear, Helix Angle of Helical Gear given Pitch Circle Diameter is defined as the angle between the axis of the shaft and the centerline of the tooth taken on the pitch plane. Helix Angle of Helical Gear is denoted by ψ symbol.

How to evaluate Helix Angle of Helical Gear given Pitch Circle Diameter using this online evaluator? To use this online evaluator for Helix Angle of Helical Gear given Pitch Circle Diameter, enter Number of Teeth on Helical Gear (z), Normal Module of Helical Gear (mn) & Diameter of Pitch Circle of Helical Gear (d) and hit the calculate button.

FAQs on Helix Angle of Helical Gear given Pitch Circle Diameter

What is the formula to find Helix Angle of Helical Gear given Pitch Circle Diameter?
The formula of Helix Angle of Helical Gear given Pitch Circle Diameter is expressed as Helix Angle of Helical Gear = acos(Number of Teeth on Helical Gear*Normal Module of Helical Gear/Diameter of Pitch Circle of Helical Gear). Here is an example- 1136.42 = acos(37*0.003/0.118).
How to calculate Helix Angle of Helical Gear given Pitch Circle Diameter?
With Number of Teeth on Helical Gear (z), Normal Module of Helical Gear (mn) & Diameter of Pitch Circle of Helical Gear (d) we can find Helix Angle of Helical Gear given Pitch Circle Diameter using the formula - Helix Angle of Helical Gear = acos(Number of Teeth on Helical Gear*Normal Module of Helical Gear/Diameter of Pitch Circle of Helical Gear). This formula also uses Cosine (cos), Inverse Cosine (acos) function(s).
What are the other ways to Calculate Helix Angle of Helical Gear?
Here are the different ways to Calculate Helix Angle of Helical Gear-
  • Helix Angle of Helical Gear=acos(Normal Circular Pitch of Helical Gear/Pitch of Helical Gear)OpenImg
  • Helix Angle of Helical Gear=acos(Normal Module of Helical Gear/Transverse Module of Helical Gear)OpenImg
  • Helix Angle of Helical Gear=atan(Pitch of Helical Gear/Axial Pitch of Helical Gear)OpenImg
Can the Helix Angle of Helical Gear given Pitch Circle Diameter be negative?
No, the Helix Angle of Helical Gear given Pitch Circle Diameter, measured in Angle cannot be negative.
Which unit is used to measure Helix Angle of Helical Gear given Pitch Circle Diameter?
Helix Angle of Helical Gear given Pitch Circle Diameter is usually measured using the Degree[°] for Angle. Radian[°], Minute[°], Second[°] are the few other units in which Helix Angle of Helical Gear given Pitch Circle Diameter can be measured.
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