22mm Planetary Gearbox.Permissible Load Range: 0.2N.m~2.0N.m
Planetary Gearbox
Bearing at output | Sleeve bearings | Ball bearings |
Max. Radial load（10mm from flange） | 40N | 50N |
Max. shaft axial load | 30N | 30N |
Radial play of shaft（ near to flange） | ≤0.1 mm | ≤0.08 mm |
Axial play of shaft | ≤0.3 mm | ≤0.3 mm |
20STH Hybrid Stepping Motor Specifications
Model No. | Current /Phase | Resistance /Phase | lnductance /Phase | Holding Torque | Detent Torque | # of Leads | Rotor lnertia | Weight | Length L1 |
Single Shaft | A | Ω | mH | N.m | N.m | g-cm2 | kg | mm | |
20STH30-0604A | 0.6 | 6.5 | 1.7 | 0.018 | 0.002 | 4 | 2.0 | 0.06 | 30 |
20STH33-0604A | 0.6 | 6.5 | 1.7 | 0.018 | 0.002 | 4 | 2.0 | 0.06 | 33 |
20STH42-0804A | 0.8 | 5.4 | 1.5 | 0.03 | 0.002 | 4 | 3.6 | 0.08 | 42 |
Planetary Gearbox Specifications
Reduction ratio | 4 | 6 | 16 | 19 | 24 | 36 | 64 | 76 | 96 | 144 | 171 | 216 | ||
Accurate Reduction Ratio | 4.00 | 6.00 | 16.00 | 19.00 | 24.00 | 36.00 | 64.00 | 76.00 | 96.00 | 144.00 | 171.00 | 216.00 | ||
Number of gear trains | 1 | 2 | 3 | |||||||||||
Length(L) mm | 22.9 | 29.3 | 35.7 | |||||||||||
Max. rated torque | N.m | 0.2 | 0.8 | 1.6 | ||||||||||
Short time permissible torque | N.m | 0.6 | 2.4 | 4.8 | ||||||||||
Efficiency % | 90% | 81% | 73% | |||||||||||
Backlash at no-load | 0.5° | 1.0° | 1.5° | |||||||||||
Weight g | 30 | 35 | 40 | |||||||||||
20STH Pull Out Torque Curve
Dimensions
Integer reduction ratio of planetary gear motor.
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