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MDrive23 Microstepping Datasheet REV121704 4
The MDrive23 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
MDRIVE23 WITH PLANETARY GEARBOX
PLANETARY GEARBOX MECHANICAL SPECIFICATIONS
Dimensions in Inches (mm)
Planetary Gearbox for MDrive23
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 MDrive23 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)...........................566/4.0 ............1699/12.0 .........3540/25.0
Gearbox Effi ciency.......................................................0.80 ....................0.75 ...................0.70
Maximum Backlash (degree)........................................ 0.70°................... 0.75°..................0.80°
Ouput Side with Ball Bearing
Maximum Load, Radial (lb-force/N) ............................ 45/200...............72/320............. 101/450
Maximum Load, Axial (lb-force/N) ............................... 13/60................ 22/100..............34/150
Weight - Gearbox Only (oz/g)....................................25.0/711 ............32.2/914 ..........39.4/1117
Weight - Gearbox & NEMA Flange (oz/g) ...................25.9/735 ............33.3/945 ..........40.7/1155
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)
Key DIN 6885-A-4x4x16mm
Ctrg. DIN 332-D M4x10
M5 x 0.394 (10.0) Deep
0.984
(25.0)
0.106
(2.7)
Ø 1.575
(Ø 40.0)
Ø 2.047
(Ø 52.0)
k1 ±0.02 (±0.5)
Ø 0.472 +0/-0.0007
(Ø 12.0 +0/-0.018)
Ø 1.26 +0/-0.0015
(Ø 32.0 +0/-0.039)
MDRIVE23
2.22 SQ.
(56.4 SQ.)
Ctrg. DIN 332-D M4x10
Key DIN 6885-A-4x4x16mm
4x Ø 0.197 (Ø 5) Hole
0.925
(23.5)
0.06
(1.5)
k2 ±0.02 (±0.5)
Ø 0.472 +0/-0.0007
(Ø 12.0 +0/-0.018)
1.854
(47.1)
1.854
(47.1)
Ø 1.50 +0/-0.0015
(Ø 38.1 +0/-0.039)
2.22 SQ.
(56.4 SQ.)
0.236
(6.0)
Ø 2.047
(Ø 52.0)
MDRIVE23
Gearbox Lengths
Inches (mm)
1-Stage 2-Stage 3-Stage
k1 Gearbox
4.315
(109.6)
5.169
(131.3)
6.024
(153.0)
k2 Gearbox w/
NEMA Flange
4.433
(112.6)
5.287
(134.3)
6.142
(156.0)