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![]() | High Gear Ratios Achievable Ratios: Harmonic drives can achieve very high gear reduction ratios in a single stage, which is difficult for other types of gears. Zero Backlash Low Backlash: Harmonic drives offer extremely low to zero backlash, enhancing positioning accuracy and repeatability, which is essential in precision applications like robotics and CNC machinery. High Torque Capacity Torque Transmission: Despite their compact size, harmonic drives can transmit high torque. This is due to the large number of teeth in contact between the flexspline and the circular spline. |
Model | 20 | ||||||
Reduction ratio | 50 | 80 | 100 | 120 | 160 | ||
Rated torque at 2000r/min input | Nm | 25 | 34 | 40 | 40 | 40 | |
kgfm | 2.5 | 3.5 | 4.1 | 4.1 | 4.1 | ||
Permissible peak torque at start and stop | Nm | 56 | 74 | 82 | 87 | 92 | |
kgfm | 5.7 | 7.5 | 8.4 | 8.9 | 9.4 | ||
Permissible maximum value for average load torque | Nm | 34 | 47 | 49 | 49 | 49 | |
kgfm | 3.5 | 4.8 | 5 | 5 | 5 | ||
Permissible maximum momentary torque | Nm | 98 | 127 | 147 | 147 | 147 | |
kgfm | 10 | 13 | 15 | 15 | 15 | ||
Permissible maximum input rotational speed (Grease) | r/min | 6500 | |||||
Permissible average input rotational speed (Grease) | r/min | 3500 | |||||
Backlash | Arc Sec | ≤20 | |||||
Weight | kg | 0.72 | |||||
Design life | Hour | 10000 | 15000 | 15000 | 15000 | 15000 |
![]() | Key Attributes of LHT - I Model 20 Harmonic Gear Units | |||
Product | Model 20 Harmonic Drive | |||
Components | Wave Generator, Flexspline, Circular Spline | |||
Reduction Ratio | 50:1, 80:1, 100:1, 120:1 | |||
Backlash | Less than 20 Arc Sec | |||
Average Input Speed | 6500 r/min | |||
Max Input Speed | 3500 r/min | |||
Design Life | 15000 hours | |||
Model | 20 | |||
Weight | 0.72 kg | |||
Warranty | 1 Year |