CutGear Studio™

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Units
Thickness
mm
Tooth Size / Module
Bore Diameter
mm
Fit Clearance
mm

Ring Teeth
Pinion Teeth
Center Offsetmm
Ring Wallmm
Mount Holes

12 RPM

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Internal Gear PreviewCenter Distance 25.0 mmPitch CircleRing OD 110.6 mmRing Wall 13.0 mmPinion Pitch Dia. 30.0 mmMount Holes: 6 x 3.2 mmRing 40TPinion 15T
Design Info
Gear Type
Internal Gear
Mesh Status
✅ Mesh OK
Ring Teeth
40
Pinion Teeth
15
Ring OD
110.6 mm
Pinion OD
33.3 mm
Bore Diameter
3.2 mm
Tooth Size / Module
2.00
Fit Clearance
0.2 mm
Center Distance
25.0 mm
Center Offset
0.0 mm
Ring Wall
13.0 mm
Ring Mount Holes
6
Mount Hole Dia.
3.2 mm
Thickness
3.0 mm
Units
mm
Made by CutGear Studio™
© 2026 Abed T. All rights reserved.

Internal Gear Generator for Ring Gears and Gearbox Designs

Generate internal ring gears with matching pinions for gearboxes, mechanical models, laser-cut prototypes, CNC projects, and educational gear assemblies. Customize ring teeth, pinion teeth, module, bore diameter, ring wall, mount holes, labels, and export fabrication-ready SVG, DXF, or STL files.