MDrive17Plus with Planetary Gearbox
The MDrive17Plus is available with a Planetary Gearbox option developed to increase torque at lower speeds, en-
able better inertia matching and produce finer positional resolutions. These efficient, low maintenance Planetary
Gearbox come fully assembled with the MDrive and are offered in a large number of reduction ratios in 1-, 2- and
3-stage configurations.
An optional NEMA Flange allows mounting the Planetary Gearbox to the load using a standard NEMA bolt circle.
Planetary Gearbox may be combined with other MDrive17Plus options, however are unavailable on Linear Actua-
tor versions.
Parameters
Permitted Output Torque (oz-in/Nm)......................... 425/3.0 .......................1062/7.5 .......................... 2124/15.0
Gearbox Efficiency ......................................................... 0.80............................. 0.75................................... 0.70
Maximum Backlash (degree) ......................................... 0.80° ............................0.85°................................. 0.90°
Output Side with Ball Bearing
Maximum Load, Radial (lb-force/N)............................ 36/160......................... 52/230 ............................ 67.5/300
Maximum Load, Axial (lb-force/N)............................... 11/50........................... 18/80 ............................... 25/110
Weight - Gearbox Only (oz/g).................................... 14.3/406 ......................17.9/508 ........................... 21.5/609
Weight - Gearbox & NEMA Flange (oz/g)................. 14.8/420 ......................18.5/525 ........................... 22.2/630
Planetary Gearbox
Dimensions in Inches (mm)
Gearbox Ratios (Rounded)
1-Stage
2-Stage
3-Stage
3.71:1
13.73:1
50.89:1
5.18:1
15.88:1
58.86:1
6.75:1
18.37:1
68.07:1
19.20:1
71.16:1
22.21:1
78.72:1
25.01:1
92.70:1
26.85:1
95.18:1
28.93:1
99.51:1
34.98:1
107.21:1
45.56:1
115.08:1
123.98:1
129.62:1
139.14:1
149.90:1
168.85:1
181.25:1
195.27:1
236.10:1
307.55:1
Planetary Gearbox with Optional NEMA Output Flange
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Appendices
1-Stage
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Gearbox Lengths
Inches (mm)
1-Stage
2.736
k1 Gearbox
(69.5)
k2 Gearbox w/
2.858
NEMA Flange
(72.6)
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Figure C.7: Planetary Gearbox Specifications for MDrive17Plus
2-Stage
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2-Stage
3-Stage
3.248
3.76
(82.5)
(95.5)
3.37
3.882
(85.6)
(98.6)
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3-Stage
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A-15
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