2 Models and External Dimensions
50 W (with Brake)
R88M-1M05030S-B(O/S2/OS2)
R88M-1M05030T-B(O/S2/OS2)
Encoder connector
Model
R88M-1M05030S-B(S2)
R88M-1M05030T-B(S2)
R88M-1M05030S-BO(S2)
R88M-1M05030T-BO(S2)
Note The standard shaft type is a straight shaft. Models with a key and tap are indicated with "S2" at the end of
the model number. Models with an oil seal are indicated with "O" at the end of the model number.
Shaft-end with key and tap
W
QE (tap)
LT (tap depth)
Key and tap cross section
R88M-1M05030S-B(S2/OS2)
R88M-1M05030T-B(S2/OS2)
2 - 44
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)
Brake connector
Motor connector
LL
Dimensions [mm]
103.5±1
108.5±1
QA
QK
Model
QA
5±0.5
21.5±0.1
2.5±0.3
25±0.5
LL
Dimensions [mm]
QK
W
2
12
0
3
-0.025
2
12
0
3
-0.025
2-4.5±0.35 dia.
40×40±0.8
T
U
QE
3
M3
0
1.2
-0.2
3
M3
0
1.2
-0.2
LT
8
8