Harmonic drive assembly: rigid circular spline ring (102 internal teeth, m0.5), thin-walled flexspline cup (100 external teeth, m0.5, 30 mm long, Ø60 output flange with 6×M3 on Ø52) and elliptical wave generator with a thin flexible bearing and Ø8 keyed input bore.
| Gear ratio | 50 : 1 |
|---|---|
| Circular spline | 102 teeth, m0.5, pitch Ø51 |
| Flexspline | 100 teeth, m0.5, pitch Ø50, wall 0.6 mm |
| Wave generator deflection | ±0.5 mm radial |
| Overall size | 70 × 70 × 43 mm |
| Parts | 11 |
| Material | Steel (S235) |
| Mass (calculated) | 390.8 g |
| General tolerance | ± 0.1 mm (ISO 2768-m) |
| Process | machining |
| 6× | Socket head cap screw M3x8 ISO 4762 |
| 01 | circular_spline 70 × 70 × 12 mm · 163.3 g |
| 02 | flexspline 60 × 60 × 33 mm · 122.7 g |
| 03 | wave_generator_cam 40.55 × 38.55 × 8 mm · 73.8 g |
| 04 | flex_bearing_inner 43.55 × 41.55 × 8 mm · 12.2 g |
| 05 | flex_bearing_outer 47.73 × 45.73 × 8 mm · 13.3 g |
| 06 | flange_bolt_0 5.5 × 5.5 × 11 mm · 0.9 g |
| 07 | flange_bolt_1 5.5 × 5.5 × 11 mm · 0.9 g |
| 08 | flange_bolt_2 5.5 × 5.5 × 11 mm · 0.9 g |
| 09 | flange_bolt_3 5.5 × 5.5 × 11 mm · 0.9 g |
| 10 | flange_bolt_4 5.5 × 5.5 × 11 mm · 0.9 g |
| 11 | flange_bolt_5 5.5 × 5.5 × 11 mm · 0.9 g |