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> stepper-motors-and-accessory > hybrid-stepper-motorgear > nema-8h20mm-size-step-motor-22jx-planetary-gear
8H(20mm size) step motor + 22JX planetary gear
Nema 8H(20mm size) Step Motor +22JX Planetary Gear
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| Model No. | Rated Voltage |
Current /Phase |
Resistance /Phase |
Inductance /Phase |
Holding Torque | #Of Leads | Weight | Length | |
| V | A | Ω | mH | Oz-in | g-cm | Kg | mm | ||
| 8H28H-0204A(B) | 4.8 | 0.2 | 24 | 8.0 | 2.2 | 160 | 4 | 0.05 | 28 |
| 8H30H-0506A(B) | 5.75 | 0.5 | 11.5 | 1.7 | 2.5 | 180 | 6 | 0.06 | 30 |
| 8H33H-0604A(B) | 3.9 | 0.6 | 6.5 | 2.2 | 2.8 | 200 | 4 | 0.07 | 33 |
| 8H38H-0604A(B) | 10 | 0.6 | 10 | 5.5 | 5.6 | 400 | 4 | 0.08 | 38 |
| Reduction ratio | 3.71 | 5.18 | 14 | 19 | 27 | 51 | 71 | 100 | 139 | 189 | 264 | 369 |
| Number of gear trains | 1 | 2 | 3 | 4 | ||||||||
| Length(L2) mm | 24.4 | 33 | 41.5 | 49.8 | ||||||||
| Max Rated torque kg.cm | 6 | 10 | 16 | 20 | ||||||||
| Max permissible load in a short time kg.cm | 18 | 30 | 48 | 60 | ||||||||
| Efficiency % | 90 | 81 | 73 | 66 | ||||||||
| Weight g | 35 | 45 | 55 | 65 | ||||||||
Mechanical Dimensions:
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