True Involute Planetary Gearbox M3 10/11/32T, Ø125

Technological demonstrator for a planetary gear with true involute gearing. Additional sizes as well as variants with input and output shafts are planned.

Technical Data:

- Module: m = 3 - Sun gear: 10 teeth - Planet gears: 3 × 11 teeth - Ring gear: 32 teeth - Outer diameter of ring gear: Ø 125 mm Applications:

- Mechanics demonstration - Functional prototypes - Educational purposes (gearing & transmission technology) - High-quality 3D printing project Gear ratios:

- Sun gear driven, ring gear fixed: i = 4.2 - Ring gear driven, sun gear fixed: i = 1.3 - Sun gear driven, planet carrier fixed: i = 3.2 Additional components for assembly:

4x heated inserts M4 (3x for the cover and 1x for the crank handle)

3x ball bearings 698RS

4x any screw M4 l= 7mm

Assembly Notes:

- The ball bearings should fit tightly into the designated seats - In tests, the bearings had a firm fit and did not require additional fixation - If necessary, slightly scaling individual parts may help improve the fit - otherwise glue helps too

Questions, feedback, or suggestions for further variants are always welcome!