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MDrive17 Speed Control Datasheet REV121704 4
The MDrive17 is available with a Planetary Gearbox
option developed to increase torque at lower speeds,
enable better inertia matching and produce fi ner
positional resolutions. These effi cient, low mainte-
nance Planetary Gearbox come fully assembled with
the MDrive and are offered in a large number of
MDRIVE17 WITH PLANETARY GEARBOX
PLANETARY GEARBOX MECHANICAL SPECIFICATIONS
Dimensions in Inches (mm)
Planetary Gearbox for MDrive17
reduction ratios in 1-, 2- and 3-stage confi gurations.
An optional NEMA Flange allows mounting the Plan-
etary Gearbox to the load using a standard NEMA
bolt circle. Planetary Gearbox may be combined with
other MDrive17 options, however are unavailable on
Linear Actuator versions.
Planetary Gearbox with Optional NEMA Output Flange
Parameters 1-Stage 2-Stage 3-Stage
Permitted Output Torque (oz-in/Nm)...........................425/3.0 .............1062/7.5 ........ 2124/15.0
Gearbox Effi ciency.......................................................0.80 ....................0.75 ................. 0.70
Maximum Backlash (degree)........................................ 0.80°................... 0.85°.................0.90°
Ouput 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
M3 x 0.276 (7.0) Deep
1.22
(31.0)
1.22
(31.0)
1.657 SQ.
(42.1 SQ.)
Key DIN 6885-A-3x3x16mm
Ctrg. DIN 332 - D M3
0.08
(2.0)
Ø 0.315 +0/-0.0004
(Ø 8.0 +0/-0.009)
Ø 0.866 +0/-0.002
(Ø 22.0 +0/-0.052)
0.846
(21.5)
k2 ±0.02 (±0.5)
Ø 1.654
(Ø 42.0)
1.20
(30.5)
MDRIVE17
Key DIN 6885-A-3x3x16mm
Ctrg. DIN 332 - D M3
M4 x 0.394 (10.0) Deep
M3 x 0.394 (10.0) Deep
0.08
(2.0)
Ø 0.315 +0/-0.0004
(Ø 8.0 +0/-0.009)
Ø 0.984 +0/-0.002
(Ø 25.0 +0/-0.052)
0.984
(25.0)
k1 ±0.02 (±0.5)
Ø 1.654
(Ø 42.0)
Ø 1.26
(Ø 32.0)
Ø 1.417
(Ø 36.0)
1.657 SQ.
(42.1 SQ.)
MDRIVE17
1-Stage 2-Stage 3-Stage
3.70:1 13.73:1 50.89:1
5.18:1 15.88:1 58.85:1
6.75:1 18.36:1 68.06:1
19.20:1 71.16:1
22.20:1 78.71:1
25.01:1 92.70:1
26.85:1 95.17:1
28.93:1 99.50:1
34.97:1 107.20:1
45.56:1 115.07:1
123.97:1
129.62:1
139.13:1
149.90:1
168.84:1
181.24:1
195.26:1
236.09:1
307.54:1
Gearbox Ratios (Rounded)
Gearbox Lengths
Inches (mm)
1-Stage 2-Stage 3-Stage
k1 Gearbox
2.736
(69.5)
3.248
(82.5)
3.76
(95.5)
k2 Gearbox w/
NEMA Flange
2.858
(72.6)
3.37
(85.6)
3.882
(98.6)