Welcome to STLGears.com!

Create your own 3D models of various gear types in STL format using our FREE online designer. Whether you need a model for prototyping, visualization, or 3D printing, we've got you covered.


A picture of a Herringbone gear with the stlgears.com logo as the background.

Double Helical Gear

Herringbone gears offer all the benefits of helical gears, but with the added advantage of eliminating axial thrust.

A picture of a spur gear with the stlgears.com logo as the background.

Spur Gear

Spur gears are a staple in machinery, due to their simplicity and wide usage.

A picture of a helical gear with the stlgears.com logo as the background.

Helical Gear

Helical gears are popular for smooth operation and high-torque applications, but produce axial thrust due to angled teeth.


Double Helical Gear



Clock Wise Helix
Helical System

Radial Method

  • + Holds spur gear geometry/dimensions
  • - Requires special cutting tools, one for each helix angle

Normal Method

    Coming soon...
Helix Angle A tooltip image displaying a square with a circle drawn around it.
Module
A tooltip image representing the total gear tooth height as 2.25 multiplied by the module.

Larger module -> Larger teeth -> Bigger gear

Show more...
Pressure Angle
A tooltip image representing the pressure angle.

Normally 20° or 25°

Show more...
Number of Teeth
Gear Length

Hole Type



Squared Hole Parameters

Circumradius A tooltip image displaying a square with a circle drawn around it.

Hexagonal Hole Parameters

Circumradius A tooltip image displaying a hexagon with a circle drawn around it.

Circular Hole Parameters

Radius A tooltip image displaying circle.

Keyway Hole Parameters

Bore Diameter A tooltip image displaying a keyway hole's bore diameter.
Key Width A tooltip image displaying a keyway hole's key width.
Bore + Key Height A tooltip image displaying the keyway hole's furthest point from the bore diameter to the key height.


Spur Gear



Module
A tooltip image representing the total gear tooth height as 2.25 multiplied by the module.

Larger module -> Larger teeth -> Bigger gear

Show more...
Pressure Angle
A tooltip image representing the pressure angle.

Normally 20° or 25°

Show more...
Number of Teeth
Gear Length

Hole Type



Squared Hole Parameters

Circumradius A tooltip image displaying a square with a circle drawn around it.

Hexagonal Hole Parameters

Circumradius A tooltip image displaying a hexagon with a circle drawn around it.

Circular Hole Parameters

Radius A tooltip image displaying circle.

Keyway Hole Parameters

Bore Diameter A tooltip image displaying a keyway hole's bore diameter.
Key Width A tooltip image displaying a keyway hole's key width.
Bore + Key Height A tooltip image displaying the keyway hole's furthest point from the bore diameter to the key height.


Helical Gear



Clock Wise Helix
Helical System

Radial Method

  • + Holds spur gear geometry/dimensions
  • - Requires special cutting tools, one for each helix angle

Normal Method

    Coming soon...
Helix Angle A tooltip image displaying a square with a circle drawn around it.
Module
A tooltip image representing the total gear tooth height as 2.25 multiplied by the module.

Larger module -> Larger teeth -> Bigger gear

Show more...
Pressure Angle
A tooltip image representing the pressure angle.

Normally 20° or 25°

Show more...
Number of Teeth
Gear Length

Hole Type



Squared Hole Parameters

Circumradius A tooltip image displaying a square with a circle drawn around it.

Hexagonal Hole Parameters

Circumradius A tooltip image displaying a hexagon with a circle drawn around it.

Circular Hole Parameters

Radius A tooltip image displaying circle.

Keyway Hole Parameters

Bore Diameter A tooltip image displaying a keyway hole's bore diameter.
Key Width A tooltip image displaying a keyway hole's key width.
Bore + Key Height A tooltip image displaying the keyway hole's furthest point from the bore diameter to the key height.