
MDrive42AC Plus2 Planetary Gearbox Parameters - PM120
| 
 | Permitted | Gearbox | Maximum | 
 | Output Side with Ball Bearing | |||
| 
 | Maximum Load | 
 | Weight | |||||
| 
 | Output Torque | Efficiency | Backlash | 
 | (lb/kg) | |||
| 
 | 
 | 
 | 
 | |||||
| 
 | 
 | 
 | Radial | Axial | Gearbox | 
 | with Flange | |
| 
 | 
 | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 7080/50.0 | 0.80 | 0.55° | 135/600 | 27/120 | 64.4/1827 | 
 | 12.3/5.6 | |
| 21242/150.0 | 0.75 | 0.60° | 202/900 | 40/180 | 89.5/2538 | 
 | 17.6/8.0 | |
| 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
*Gearbox without Flange †Gearbox with Flange
M10 x 0.866 (22.0) Deep*
4x 0.35 (Ø 9.0) Hole†
4.33 SQ. (110.0 SQ.)
3.50 SQ†.
(88.9 SQ.)
3.94 SQ.*
(100.0 SQ.)
| 
 | 
 | 
 | 2.86 ±0.02* | 
 | 
 | 
 | 
| 
 | 
 | 
 | (72.7 ±0.5) | k1 ±0.02 (±0.5) | 
 | |
| 
 | 
 | 
 | or | 
 | ||
| 
 | † 55.54) | 
 | 2.53 ±0.02† | 0.20* | 0.079† | 
 | 
| 80.0) | 32.0) | (64.2 ±0.5) | (5.0) or | (2.0) | 
 | |
| 
 | 0.59* | 0.24† | 
 | |||
| 3.15* | 2.187 | 1.26Ø | 
 | (15.0)or | (6.2) | 
 | 
| Ø (Ø or Ø (Ø | (Ø | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 4.72 | Plus | 
| 
 | 
 | 
 | 
 | 
 | 120.0) | |
| 
 | 
 | 
 | 
 | 
 | Ø | MDrive42AC | 
| 
 | 
 | 
 | 
 | 
 | (Ø | |
| 
 | Ctrg. DIN  | 0.59† | 
 | 
 | ||
| 
 | (15.0) | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | Key DIN  | 
 | 
 | |
| 
 | Dimensions in inches (mm) | |
| Stages | K1 | K1 | 
| 
 | (Gearbox) | (NEMA Flange) | 
| 6.23 (158.2) | 6.58 (167.2) | |
| 7.57 (192.4) | 7.93 (201.4) | |
| 8.92 (226.6) | 9.28 ( 235.6) | |
Figure B.9: PM120 Planetary Gearbox Specifications for MDrive42AC Plus2
PM120 Gearbox Ratios and Part Numbers
| Planetary | Ratio | Part Number | |
| Gearbox | (Rounded) | ||
| 
 | |||
| 3.71:1 | G2A1 | ||
| 6.75:1 | G2A3 | ||
| 
 | 
 | 
 | |
| 13.73:1 | G2A4 | ||
| 25.01:1 | G2A9 | ||
| 45.56:1 | G2B4 | ||
| 
 | 
 | 
 | |
| 50.89:1 | G2B5 | ||
| 92.70:1 | G2C1 | ||
| 168.85:1 | G2D1 | ||
| 307.55:1 | G2D5 | 
Table B.7: PM120 Planetary Gearbox Ratios, Inertia Moments and Part Numbers
| MDriveAC Plus Microstepping Hardware - Revision R121707 | |
| 
 | Relevant to Firmware Version 3.0.02 |