A-16
MDriveAC Plus Microstepping Hardware - Revision R121707
Relevant to Firmware Version 3.0.02
MDrive42AC Plus
2
Planetary Gearbox Parameters - PM120
Permitted
Output Torque
(oz-in/Nm)
Gearbox
Efficiency
Maximum
Backlash
Output Side with Ball Bearing
Maximum Load
(lb-force/N)
Weight
(lb/kg)
Radial
Axial
Gearbox
with Flange
1-STAGE
7080/50.0
0.80
0.55°
135/600
27/120
64.4/1827
12.3/5.6
2-STAGE
21242/150.0
0.75
0.60°
202/900
40/180
89.5/2538
17.6/8.0
3-STAGE
42484/300.0
0.70
0.65°
337/1500
67/300
92.6/2625
22.9/10.4
Table B.6: Planetary Gearbox Specifications – PM120
Planetary
Gearbox
Ratio
(Rounded)
Part Number
1-Stage
3.71:1
G2A1
1-Stage
6.75:1
G2A3
2-Stage
13.73:1
G2A4
2-Stage
25.01:1
G2A9
2-Stage
45.56:1
G2B4
3-Stage
50.89:1
G2B5
3-Stage
92.70:1
G2C1
3-Stage
168.85:1
G2D1
3-Stage
307.55:1
G2D5
Table B.7: PM120 Planetary Gearbox Ratios, Inertia Moments and Part Numbers
M
D
riv
e4
2A
C
P
lu
s
*Gearbox without Flange
†Gearbox with Flange
Ø
3
.1
5*
(Ø
8
0.
0)
Ø
2
.1
87
(Ø
5
5.
54
)
or
M10 x 0.866 (22.0) Deep*
4x 0.35 (Ø 9.0) Hole†
†
†
†
or
or
k1 ±0.02 (±0.5)
Ctrg. DIN 332-D M12
Key DIN 6885-A-10x8x50mm
0.20*
(5.0)
†
0.079
(2.0)
†
0.24
(6.2)
0.59*
(15.0)
2.86 ±0.02*
(72.7 ±0.5)
2.53 ±0.02
(64.2 ±0.5)
Ø
1
.2
6
(Ø
3
2.
0)
Ø
4
.7
2
(Ø
1
20
.0
)
4.
33
S
Q
.
(1
10
.0
S
Q
.)
3.94 SQ.*
(100.0 SQ.)
3.50 SQ.
(88.9 SQ.)
or
0.59
(15.0)
†
Dimensions in inches (mm)
Stages
K1
(Gearbox)
K1
(NEMA Flange)
1-Stage
6.23 (158.2)
6.58 (167.2)
2-Stage
7.57 (192.4)
7.93 (201.4)
3-Stage
8.92 (226.6)
9.28 ( 235.6)
Figure B.9: PM120 Planetary Gearbox Specifications for MDrive42AC Plus2
PM120 Gearbox Ratios and Part Numbers