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7. HG-SR SERIES
7 - 9
7.5 Servo motors with special shafts
The servo motors with special shafts indicated by the symbol (K) in the table are available. K is the symbol
attached to the servo motor model names.
Servo motor
Shaft shape
Key shaft (without key)
HG-SR_(B)K K
Variable dimension table
[Unit: mm]
S
QL
A
A
QK
Q
R
W
U
r Y
Shaft section viewA-A
Servo motor
Variable dimensions
S R Q W QK QL U r Y
HG-SR51(B)K
HG-SR81(B)K
HG-SR52(4)(B)K
HG-SR102(4)(B)K
HG-SR152(4)(B)K
24h6 55 50
8
0
-0.036
36 5
4
+0.2
0
4
M8
Screw
hole
depth
20
HG-SR121(B)K
HG-SR201(B)K
HG-SR301(B)K
HG-SR421(B)K
HG-SR202(4)(B)K
HG-SR352(4)(B)K
HG-SR502(4)(B)K
HG-SR702(4)(B)K
35
+0.010
0
79 75
10
0
-0.036
55 5
5
+0.2
0
5
M8
Screw
hole
depth
20
Key shaft (without key)