Rotary Servo Motors With Special Shafts; Keyed Shaft (With Double Round-Ended Key) - Mitsubishi Electric MELSERVO-J5 HK Series User Manual

6.5

Rotary servo motors with special shafts

There are four shaft shape types for the rotary servo motor: keyed shaft (with double round-ended key), keyed shaft (without
key), D-cut shaft, and L-cut shaft.
To prevent an accident such as motor shaft fracture, do not use a servo motor with a D-cut shaft, L-cut shaft, or keyed shaft for
frequent start/stop applications.
For geared servo motors with special shafts, refer to the following.
Page 129 Servo motor with special shaft
Rotary servo motor
HK-KT053W
HK-KT13W
HK-KT1M3W
HK-KT13UW
HK-KT23W
HK-KT43(4)W
HK-KT63(4)W
HK-KT23UW
HK-KT43UW
HK-KT7M3(4)W
HK-KT103(4)W
HK-KT7M3UW
HK-KT103UW
HK-KT153(4)W
HK-KT203(4)W
HK-KT202(4)W

Keyed shaft (with double round-ended key)

R
Q
QK
[Unit: mm]
Rotary servo motor
HK-KT053WK
HK-KT13WK
HK-KT1M3WK
HK-KT13UWK
HK-KT23WK
HK-KT43(4)WK
HK-KT63(4)WK
HK-KT23UWK
HK-KT43UWK
HK-KT7M3(4)WK
HK-KT103(4)WK
HK-KT7M3UWK
HK-KT103UWK
HK-KT153(4)WK
HK-KT203(4)WK
HK-KT202(4)WK
6 HK-KT SERIES
120
6.5 Rotary servo motors with special shafts
Shaft shape
Keyed shaft
With double round-
ended key
K
K
QL
U Y
A
A
T
Section A-A
Variable dimensions
S R Q
25 21.5
0
8
-0.009
21
30 26
0
14
-0.011
40 36
0
19
-0.013
D-cut shaft
Without key
N D
N 
W QK
3 14
5 20
6 25
L-cut shaft
L

QL U T
5 1.8 3
3 3 5
5 3.5 6
Y
M3
Screw hole
depth
8
M4
Screw hole
depth
15
M5
Screw hole
depth
20