Mitsubishi Electric MELSERVO-J5 HK Series User Manual page 170

Servo motor with special shaft
The flange-mounting shaft output type servo motors for high precision application (G7) have a keyed shaft (with single pointed
key).
[Unit: mm]
Rotary servo motor
HK-ST_G7K
7 HK-ST SERIES
168
7.6 Geared servo motor
Gear Q
reducer
model
20A 42
32A 82
50A 82
Q
U U
QK
T
φS W T
25h7 8 7
40h7 12 8
50h7 14 9
Y
QK U Y
36 4 M6 screw hole
depth 12
70 5 M10 screw hole
depth 20
70 5.5