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A-14
MDriveAC Plus Microstepping Hardware - Revision R031808
Relevant to Firmware Version 3.0.02
Figure B.7: Planetary Gearbox Specifications for MDrive34AC Plus
2
Planetary Gearbox for MDrive34AC Plus
2
MDrive34AC Plus
2
Planetary Gearbox Parameters
Permitted
Output Torque
(oz-in/Nm)
Gearbox
Efficiency
Maximum
Backlash
Output Side with Ball Bearing
Maximum Load
(lb-force/N)
Weight
(oz/g)
Radial Axial Gearbox with Flange
1-STAGE 2832/20.0 0.80 1.0° 90/400 18/80
64.4/1827
66.7/1890
2-STAGE 8496/60.0 0.75 1.5° 135/600 27/120
89.5/2538
92.6/2625
3-STAGE 16992/120.0 0.70 2.0°
225/1000
45/200
92.6/2625
118.5/3360
Table B.2: Planetary Gearbox Specifications – PM81
PM81 Gearbox Ratios and Part Numbers
Planetary
Gearbox
Ratio
(Rounded)
Part
Number
Planetary
Gearbox
Ratio
(Rounded)
Part
Number
1-Stage 3.71:1 G1A1 3-Stage 50.89:1 G1B5
1-Stage 5.18:1 G1A2 3-Stage 58.86:1 G1B6
1-Stage 6.75:1 G1A3 3-Stage 68.07:1 G1B7
3-Stage 71.16:1 G1B8
2-Stage 13.73:1 G1A4 3-Stage 78.72:1 G1B9
2-Stage 15.88:1 G1A5 3-Stage 92.70:1 G1C1
2-Stage 18.37:1 G1A6 3-Stage 95.18:1 G1C2
2-Stage 19.20:1 G1A7 3-Stage 99.51:1 G1C3
2-Stage 22.21:1 G1A8 3-Stage 107.21:1 G1C4
2-Stage 25.01:1 G1A9 3-Stage 115.08:1 G1C5
2-Stage 26.85:1 G1B1 3-Stage 123.98:1 G1C6
2-Stage 28.93:1 G1B2 3-Stage 129.62:1 G1C7
2-Stage 34.98:1 G1B3 3-Stage 139.14:1 G1C8
2-Stage 45.56:1 G1B4 3-Stage 149.90:1 G1C9
3-Stage 168.85:1 G1D1
3-Stage 181.25:1 G1D2
3-Stage 195.27:1 G1D3
3-Stage 236.10:1 G1D4
3-Stage 307.55:1 G1D5
Table B.3: Planetary Gearbox Ratios and Part Numbers
Key DIN 6885-A-6x6x28mm
Ctrg. DIN 332-D M6x16
4x Ø 0.217 (Ø5.5) Hole
†
4x Ø 0.217 (Ø5.5) Hole
†
0.197*
(5.0)
K1 ±0.02 (±0.5)
Ø 2.56*
(Ø 65.0)
1.575
(40.0)
Ø 3.189
(Ø 81.0)
Ø 1.969 +0.0006/-0.0004*
(Ø 50.0 +0.015/-0.010)
or
Ø 2.874 +0/-0.0012
†
(Ø 73.0 +0/-0.030)
Ø 0.748 +0/-0.0008
(Ø 19.0 +0/-0.021)
0.394
†
(10.0)
MDrive34Plus
3.386 SQ.
(86.0 SQ.)
*Gearbox without Flange
†
Gearbox with Flange
1.929*
(49.0)
or
1.811
†
(46.0)
M6 x 0.472 (12.0) Deep*
0.079
†
(2.0)
or
2.739 SQ.
†
(69.58 SQ.)
Dimensions in inches (mm)
Stages K1
(Gearbox)
K1
(NEMA Flange)
1-Stage 4.315 (109.6)
4.433 (112.6)
2-Stage 5.169 (131.3)
5.287 (134.3)
3-Stage 6.024 (153.0)
6.142 (156.0)