Mitsubishi Electric MR-J5-HK-KT Series User Manual page 233

9.5
Rotary servo motors with special shafts
For rotary servo motors, there are two types of shafts: keyed shaft (with double round-ended key) and keyed shaft (without
key).
To prevent an accident such as motor shaft fracture, do not use a servo motor with a keyed shaft for frequent start/stop
applications.
Rotary servo motor Shaft shape
Keyed shaft
With double round-ended key
HK-RT103(4)W K
HK-RT153(4)W
HK-RT203(4)W
HK-RT353(4)W
HK-RT503(4)W
HK-RT703(4)W
Keyed shaft (with double round-ended key)
R
Q
QK QL
A
A
[Unit: mm]
Rotary servo motor Variable dimensions
S
HK-RT103(4)WK
0
19
-0.013
HK-RT153(4)WK
HK-RT203(4)WK
HK-RT353(4)WK
0
24
-0.013
HK-RT503(4)WK
HK-RT703(4)WK
U Y
T
Section A-A
R Q W
40 36 6
55 50 8
Without key
N
QK QL U
25 5 3.5
36 5 4
9.5 Rotary servo motors with special shafts
9
T Y
6 M5
Screw hole
depth
20
7 M8
Screw hole
depth
20
9 HK-RT SERIES
231