5.3 External Dimensions
5.3.4 Servomotors without Gears and without Holding Brakes
5
Specifications, Ratings, and Exter
nal Dimensions of SGM7A Servomotors
5-23
SGM7A-70
*
Leave a minimum space of 70 mm around the Servomotor from walls and other equipment to allow for a sufficient
amount of cooling air.
*
For models that have a batteryless absolute encoder, KB2 is 8 mm greater than the given value. Refer to the fol-
lowing section for the values for individual models.
Dimensions of Servomotors with Batteryless Absolute Encoders
Note: Servomotors with Oil Seals have the same dimensions.
Refer to the following section for information on connectors.
SGM7A-70 without Holding Brakes
Model
SGM7A-
L
LL
LM
LR
KB1 KB2
*
KL1
Flange Dimensions
Shaft End
Dimensions
Approx.
Mass
[kg]
LA
LB
LC
LE LG LH
LZ
S
Q
70A
A21
397 334 291
63
224
261
108
145
110
130
6
12 165
9
28
55
18.5
R1
30 dia.
Q
63
6
S dia.
45 dia.
144
A
LR
5.5
130
43
L
LL
LM
0.04
A
50
KB1
KB2
LE
1.5
LG
0.02
LC
KL1
80
70
*
20
17
49
0.04 dia.
LB dia.
A
0.04 dia. A
114
4
×
LZ dia.
LC
144
65 dia.
S dia.
LH dia.
LA dia.
Cooling air flow
Unit: mm
Detector
connector
Motor end
Fan connector
Cooling Fan
Cooling Fan Specifications
Single-phase, 220 V
50/60 Hz
17/15 W
0.11/0.09 A
Specifications of Fan Operation Error Detector
Contact Capacity
Maximum allowable voltage: 350 V (AC/DC)
Maximum allowable current: 120 mA (AC/DC)
Maximum controllable power: 360 mW
Alarm Contacts
ON for normal fan rotation.
OFF at 1,680
±
100 min
-1
max.
OFF for 3 seconds at startup.
page 5-26 for details.
0
-0.035
0
-0.013