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2-4 External and Mounting Dimensions
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
   2
Standard Models and External Dimensions
1,000-r/min Servomotors (400 V)
900 W (without Brake)
R88M-K90010F (-S2) 
R88M-K90010C (-S2)  
900 W (with Brake)
R88M-K90010F-B (S2) 
R88M-K90010C-B (S2)  
Note.  The standard models have 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. The motor dimensions 
do not change.
INC
ABS
INC
ABS
130×130
45
41
70
M3, through
M5 (depth 10)
8h9
7
18
(Shaft end specifications with key and tap)
4-ø9
φ165
φ145
φ22h6
φ110h7
Encoder 
connector
Motor and brake
connector
116 (without brake) 
118 (with brake)
LM
KB2
KB1
70LL
60
612
φ
22h6
φ110h7
Model
Dimensions (mm)
LL LM KB1 KB2
R88M-K90010@ 155.5 111.5 77.5 133.5
R88M-K90010@-B@ 183.5 139.5 74.5 161.5