138
6  HK-KT SERIES
6.8  Dimensions
HK-KT23(B)G5/HK-KT43(B)G5/HK-KT7M3(B)G5
*1 The values in ( ) of the dimensions are for the servo motors with an electromagnetic brake.
[Unit: mm]
Model Reduction 
ratio
Variable dimensions 
*1
L LA LB LC LD LE LF LG LH LK LM KL T N P R M KA LT
HK-
KT23(
B)G5
1/5 131.5
(166.1)
70 30 60 40 3 8 56 119.8
(154.4)
5 6 M4 7 5.5 46.6 11.7
1/11
1/21 138.5
(173.1)
105 45 90 59 8 10 61 126.8
(161.4)
M6 10 9
1/33
1/45
HK-
KT43(
B)G5
1/5 149.5
(184.1)
70 30 60 40 3 8 56 137.8
(172.4)
M4 7 5.5
1/11 156.5
(191.1)
105 45 90 59 8 10 61 144.8
(179.4)
M6 10 9
1/21
1/33 168.5
(203.1)
135 60 120 84 13 13 70 156.8
(191.4)
M8 12 11
1/45
HK-
KT7M3
(B)G5
1/5 170.5
(206)
105 45 90 59 8 10 68 158.8
(194.3)
M6 10 9 56.6
1/11
1/21 180.5
(216)
135 60 120 84 13 13 75 168.8
(204.3)
M8 12 11
1/33
1/45
56
 0
-0.03
21
+0.4
 - 0.5
85
 0
-0.035
27
+0.4
 - 0.5
56
 0
-0.03
21
+0.4
 - 0.5
85
 0
-0.035
27
+0.4
 - 0.5
115
 0
-0.035
35
+0.4
 - 0.5
85
 0
-0.035
27
+0.4
 - 0.5
115
 0
-0.035
35
+0.4
 - 0.5
L
31.5
KA
36
11.5
LT
 
 
 
0.5X40°
4-M
117.3
LG
LH
T
LK
LM
LD
45°
39
LF
LE
LC
KC
120°
LA
LB
N-P screw hole 
depth R
Connector
Rotation direction
Under reverse rotation command
Under forward rotation command