Yaskawa SGDB - Manual (Page 257)

5.2 SGM Servomotor
247
Servomotor
Model
SGMG-
Load Inertia
at the Motor
Shaft
(Servomotor
+ Gear)
× 10 −4 kg·m 2
(× 10 −3
lb·in·s 2 )
Gear
Inertia
×10 −4
kg·m 2
(×10 −3
lb·in·s 2 )
Gear Servomotor Servomotor
Model
SGMG-
Load Inertia
at the Motor
Shaft
(Servomotor
+ Gear)
× 10 −4 kg·m 2
(× 10 −3
lb·in·s 2 )
Gear
Inertia
×10 −4
kg·m 2
(×10 −3
lb·in·s 2 )
Max.
Speed
min −1
Rated
Speed
min −1
Instanta-
neous
Peak
Torque/
Efficiency
N·m/%
(lb·in/%)
Rated
Torque/
Efficiency
N·m/%
(lb·in/%)
Gear
Ratio
Rated
Torque
N·m
(lb·in)
Rated
Speed
min −1
Output
kW
-20AjAL1K 1.8 1500 11.5
(102)
1/5 46.0/80
(407/80)
115/80
(1018/80)
300 600 10.2 (9.03) 41.9 (37.1)
-20AjAL2K
( )
1/9 82.8/80
(733/80)
207/80
(1832/80)
167 334 7.80 (6.90) 39.5 (35.0)
-20AjAL5K 1/20 184/80
(1629/80)
459/80
(4063/80)
75 150 20.2 (17.9) 51.9 (45.9)
-20AjAL7K 1/29 267/80
(2363/80)
666/80
(5895/80)
51 102 13.4 (11.9) 45.1 (39.9)
-30AjAL1K 2.9 18.6
(165)
1/5 74.4/80
(659/80)
182/80
(1611/80)
300 600 20.4 (18.1) 66.4 (58.8)
-30AjAL2K
( )
1/9 134/80
(1186/80)
328/80
(2903/80)
167 334 12.5 (11.1) 58.5 (51.8)
-30AjAL5K 1/20 298/80
(2638/80)
730/80
(6461/80)
75 150 20.2 (17.9) 66.2 (58.6)
-44AjAL1K 4.4 28.4
(251)
1/5 114/80
(1009/80)
284/80
(2514/80)
300 600 20.4 (18.1) 87.9 (77.8)
-44AjAL2K
( )
1/9 204/80
(1806/80)
512/80
(4532/80)
167 334 12.5 (11.1) 80.0 (70.8)
Note Output torque and motor speed produce the following trends in efficiency. Val-
ues in the table are at the rated motor speed.
Output torque Motor speed
Efficiency Efficiency
5