56mm OD Planetary Gearbox.Permissible Load Range: 9N.m~30N.m
Planetary Gearbox
Ring material | Metal |
Bearing at output | Ball bearings |
Max. Radial load(12mm from flange) | 300N |
Max.shaft axial load | 200N |
Radial play of shaft ( near to flange) | ≤0.08 mm |
Axial play of shaft | ≤0.4 mm |
57STH Hybrid Stepping Motor Specifications
Model No. | Rated Voltage | Current /Phase | Resistance /Phase | Inductance /Phase | Holding Torque | # of Leads | Rotor Inertia | Weight | Length L1 | Max. Gear Ratio |
Single Shaft | V | A | Q | mH | kg.cm | g.m | kg | mm | ||
57STH51-2804A | 2.3 | 2.8 | 0.83 | 2.2 | 10.1 | 4 | 275 | 0.65 | 51 | ≤1:77 |
57STH56- 2804A | 2.5 | 2.8 | 0.9 | 2.5 | 12.6 | 4 | 300 | 0.70 | 56 | ≤1:77 |
A-Single Shaft, B-Double shaft.
Planetary Gearbox Specifications
Reduction ratio | 3.60 | 4.25 | 13 | 15 | 18 | 23 | 47 | 55 | 65 | 77 | 96 | 121 | 153 | 187 | |
Number of gear trains | 1 | 2 | 3 | 4 | |||||||||||
Length(L2) mm | 37.8 | 49.4 | 60.8 | 71.9 | |||||||||||
Max. rated torque | kg.cm | 90 | 150 | 300 | 300 | ||||||||||
Short time permissible torque kg.cm | 270 | 450 | 900 | 900 | |||||||||||
Efficiency % | 90% | 81% | 73% | 66% | |||||||||||
Backlash at no-load | 0.5° | 1.0° | 1.5° | 1.5 | |||||||||||
Weight g | 455 | 610 | 765 | 920 | |||||||||||
Dimensions
Frequency-torque characteristics
Gearbox 56JMS300K:56mm OD Precision Pianetary gearbox.Permissible Load Rnge:300kg.cm.
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