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2-4 External and Mounting Dimensions
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
2
Standard Models and External Dimensions
4 kW/5 kW (without Brake)
R88M-K4K020F (-S2)/-K5K020F (-S2)
R88M-K4K020C (-S2)/-K5K020C (-S2)
4 kW/5 kW (with Brake)
R88M-K4K020F-B (S2)/-K5K020F-B (S2)
R88M-K4K020C-B (S2)/-K5K020C-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.
Model
Dimensions (mm)
LL LM KB1 KB2
R88M-K4K020x 177 133 96 155
R88M-K5K020x 196 152 115 174
R88M-K4K020x-Bx 202 158 96 180
R88M-K5K020x-Bx 221 177 115 199
INC
176×176
70
55
50
M3, through
(Shaft end specifications with key and tap)
4-φ13.5
φ200
φ233
φ35h6
φ114.3h7
M12
(depth 25)
10h9
8
30
Encoder
connector
Motor and brake
connector
LM
KB2
KB1
70LL
140
60
3.218
φ35h6
φ114.3h7
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