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MDriveAC Plus Microstepping Hardware - Revision R031808
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
MDrive42AC Plus
*Gearbox without Flange
†Gearbox with Flange
Ø 3.15*
(Ø 80.0)
Ø 2.187
(Ø 55.54)
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 1.26
(Ø 32.0)
Ø 4.72
(Ø 120.0)
4.33 SQ.
(110.0 SQ.)
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 Plus
2
PM120 Gearbox Ratios and Part Numbers