Custom Gears - Precision Planetary Gearboxes & Robot Joint Modules

What Are Custom Gears?

Custom gears are non-standard gear solutions engineered to specific customer requirements — unique modules, pressure angles, tooth profiles, materials or heat treatment specifications that fall outside catalog product ranges.

Product Appearance

Internal Ring Gears

Oblique view of an internal ring gear with mounting holes around the outer rim — Custom Internal Ring Gears

Thin-walled internal ring gear with external mounting lugs — Custom Internal Ring Gears

Flanged internal ring gear with a raised boss — Custom Internal Ring Gears

Another oblique view of an internal ring gear with outer-rim mounting holes — Custom Internal Ring Gears

Top oblique view of an internal ring gear with outer-rim mounting holes — Custom Internal Ring Gears

A group of three internal ring gears — Custom Internal Ring Gears

Helical Gears

Cylindrical component with internal helical teeth and external teeth — Custom Helical Gears

Oblique view of a flanged cylindrical component with internal helical teeth — Custom Helical Gears

Another view of a flanged cylindrical component with internal helical teeth — Custom Helical Gears

Inverted view of a flanged cylindrical component with internal helical teeth — Custom Helical Gears

Ring-shaped component with a flange and angled internal teeth — Custom Helical Gears

Spur Gears

Oblique view of a spur gear with a plain bore — Custom Spur Gears

Angled side view of a spur gear with a plain bore — Custom Spur Gears

A single small spur gear — Custom Spur Gears

A group of five small spur gears — Custom Spur Gears

Upright view of a wide-face spur gear — Custom Spur Gears

Angled view of a wide-face spur gear — Custom Spur Gears

Upright view of a spur gear with a plain bore — Custom Spur Gears

Angled view of a spur gear with a plain bore — Custom Spur Gears

A group of three spur gears — Custom Spur Gears

Top oblique view of a small spur gear — Custom Spur Gears

Bevel Gears

A single large bevel gear — Custom Bevel Gears

Oblique view of a large and a small bevel gear shown together — Custom Bevel Gears

How GTIT Handles Custom Orders:

Our engineering team reviews your drawings, evaluates manufacturability and provides a detailed quotation. From prototype sampling to volume production, every custom gear follows the same quality control process as our standard products — CMM inspection, material certification and full documentation.

What We Customize:

Non-standard modules and pressure angles

Special tooth profiles and gear types

Custom materials (stainless steel, special alloys)

Custom heat treatment and surface finish specifications

Materials: 42CrMo · 20CrMnTi · 18CrNiMo7-6 · Stainless Steel · Other Alloys

Applications:

Robotics & Humanoid Robots · Precision Reducers · Medical Equipment · Automated Systems · Specialty & Custom Applications

FAQ:

Q: What information do you need for a custom gear quote?

A: A detailed drawing or specification including module, number of teeth, pressure angle, material, heat treatment, precision grade, quantity and target delivery date.

Q: Can you reverse-engineer from a sample gear?

A: Yes. Send us a sample and we can analyze specifications, create drawings and produce matching gears, provided the part is not subject to third-party patents or proprietary rights and you hold the legal right to reproduce it.