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6. HG-MR SERIES/HG-KR SERIES
6 - 7
6.5 Servo motors with special shafts
The servo motors with special shafts indicated by the symbols (K and D) in the table are available. K and D
are the symbols included in the servo motor model names. Refer to section 6.6.2 (4) for geared servo motors
with special shaft.
Servo motor
Shaft shape
Key shaft (with key) D cut shaft
HG-MR053(B)_
HG-MR13(B)_
HG-KR053(B)_
HG-KR13(B)_
D
HG-MR23(B)_
HG-MR43(B)_
HG-MR73(B)_
HG-KR23(B)_
HG-KR43(B)_
HG-KR73(B)_
K
6.5.1 Key shaft (with 2 round end key)
Q
A
A
QK
R
T
W
U
QL
Y
Shaft section view A-A
S
Variable dimension table
[Unit: mm]
Servo motor
Variable dimensions
S R Q W QK QL U T Y
HG-MR23(B)K
HG-MR43(B)K
HG-KR23(B)K
HG-KR43(B)K
14h6 30 26 5 20 3 3 5
M4
Screw
hole
depth
15
HG-MR73(B)K
HG-KR73(B)K
19h6 40 36 6 25 5 3.5 6
M5
Screw
hole
depth
20
6.5.2 D cut shaft
[Unit: mm]
8h6
25
21.5
20.5
1