YASKAWA E Series Product Manual page 118

Moment of Inertia [×10
Shaft Output
Servomotor Model
Motor*
SGM7P-
+
Gear
 
01A AH1 0.0642
 
01A AHB 0.119
 
01A AHC 0.109
 
01A AH7 0.509
 
02A AH1 0.470
 
02A AHB 0.456
 
02A AHC 0.753
 
02A AH7 0.713
 
04A AH1 0.616
 
04A AHB 0.979
 
04A AHC 0.899
 
04A AH7 1.03
 
08A AH1 3.20
 
08A AHB 2.70
 
08A AHC 5.10
 
08A AH7 4.90
 
15A AH1 7.82
 
15A AHB 7.42
 
15A AHC 9.82
 
15A AH7 8.82
The moment of inertia for the Servomotor and gear is the value without a holding brake. You can calculate the
*
moment of inertia for a Servomotor with a Gear and Holding Brake with the following formula.
Motor moment of inertia for a Servomotor with a Holding Brake from 6.2.2 Ratings of Servomotors with-
out Gears on page 6-4 + Moment of inertia for the gear from the above table.
During operation, the gear generates the loss at the gear mechanism and oil seal. The loss
depends on the torque and motor speed conditions. The temperature rise depends on the loss
and heat dissipation conditions. For the heat dissipation conditions, always refer to the following
table and check the gear and motor temperatures with the actual equipment. If the temperature
Important
is too high, implement the following measures.
• Decrease the load ratio.
• Change the heat dissipation conditions.
• Use forced-air cooling for the motor with a cooling fan or other means.
Model
SGM7P-01
SGM7P-02
SGM7P-04
SGM7P-08
SGM7P-15
• A: 250 mm × 250 mm × 6 mm, aluminum plate
• B: 300 mm × 300 mm × 12 mm, aluminum plate
• C: 350 mm × 350 mm × 12 mm, aluminum plate
-4 2
kgm ]
Flange Output
Allowable
Motor*
Radial Load
Gear + Gear
Gear
0.005 0.0632 0.004
0.060 0.118 0.059
0.050 0.109 0.050
0.450 0.508 0.449
0.207 0.464 0.201
0.193 0.455 0.192
0.490 0.751 0.488
0.450 0.712 0.449
0.207 0.610 0.201
0.570 0.969 0.560
0.490 0.897 0.488
0.620 1.01 0.610
1.10 3.16 1.06
0.600 2.69 0.590
3.00 5.08 2.98
2.80 4.89 2.79
3.80 7.55 3.53
3.40 7.36 3.34
5.80 9.72 5.70
4.80 8.79 4.77
Heat Sink Size
1/5 1/11
C
6.2 Specifications and Ratings
6.2.4 Ratings of Servomotors with Gears
With Low-Backlash Gears
Allowable
Thrust LF
Load [mm]
[N]
[N]
95 431 37
192 895 53
233 1087 53
605 2581 75
152 707 53
192 895 53
528 2254 75
605 2581 75
152 707 53
435 1856 75
528 2254 75
951 4992 128
343 1465 75
435 1856 75
830 4359 128
951 4992 128
540 2834 128
684 3590 128
2306 9989 151
2641 11400 151
1/21 1/33
A
B
Reference Diagram
Shaft Output
LF
Radial load
Thrust load
Flange Output
LF
Radial load
Thrust load
6
6-7