Yaskawa SGDB - Manual (Page 254)

USING THE DIGITAL OPERATOR
5.2.1 Ratings and Specifications cont.
244
Servomotor
Model
SGMG-
Gear
Inertia
× 10 −4
Kg·m 2
(× 10 −3
lb·in·s 2 )
Gear Servomotor Servomotor
Model
SGMG-
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/Ef-
ficiency
N·m/%
(lb·in/%)
Rated
Torque/Ef-
ficiency
N·m/%
(lb·in/%)
Gear Ra-
tio
Rated
Torque
N·m
(lb·in)
Rated
Speed
min −1
Output
kW
-75AjAjBR 7.5 1500 48.0
(425)
1/11 422/80
(3735/80)
1039/80
(9196/80)
136 272 65.0 (57.5)
-75AjAjCR
( )
1/21 807/80
(7143/80)
1989/80
(17605/80)
71 142 79.0 (69.9 )
-75AjAj7R 1/29 1117/80
(9887/80)
2754/80
(24376/80)
51 103 91.0 (80.5)
-1AAjAjBR 11 70.0
(620)
1/11 615/80
(5443/80)
1548/80
(13701/80)
136 182 90.0 (79.6)
-1AAjAjCR
( )
1/21 1176/80
(10408/80)
2950/80
(26110/80)
71 95 95.0 (84.1 )
-1AAjAj7R 1/29 1627/80
(14400/80)
4067/80
(35996/80)
51 69 238.0 (210.6)
Note Output torque and motor speed produce the following trends in efficiency. Values in
the table are at the rated motor speed.
Output torque Motor speed
Efficiency Efficiency
Configuration
The following configuration accurately and efficiently transmits Servomotor power.
A gear (Cyclo) is used in combination with the internal planetary gear mechanism of the Servo-
motor.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Part Name
Low-speed shaft
Collar
External cover
Internal pin
Internal roller
External pin
Frame
Ring
Curved plate
Eccentric bearing
Internal cover
High-speed shaft
Adapter plate
Motor
5