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7. HF-SN SERIES
7 - 5
7.5 Servo motors with special shafts
The servo motors with special shafts indicated by the symbol (K) in the table is available. K is the symbol
attached to the servo motor model names.
Shaft shape
Servo motor
Key shaft (without key)
HF-SN_(B)JK K
Variable dimension table
[Unit: mm]
Variable dimensions
Servo motor
S R Q W QK QL U r Y
HF-SN52(B)JK
HF-SN102(B)JK
HF-SN152(B)JK
24h6 55 50
8
0
-0.036
36 5
4
+0.2
0
4
M8
Screw
hole
depth
20
HF-SN202(B)JK
HF-SN302(B)JK
35
+0.010
0
79 75
10
0
-0.036
55 5
5
+0.2
0
5
M8
Screw
hole
depth
20
S
QL
A
A
QK
Q
R
W
U
r Y
Shaft section view A-A
Key shaft (without key)
7.6 Servo motor with oil seal
The oil seal prevents the entry of oil into the servo motor.
Install the servo motor horizontally, and set the oil level in the gear box to be lower than the oil seal lip
always.
Gear
Shaft
Servo motor
Oil seal
Height above oil level h
Lip
Servo motor
Oil level height h
[mm]
HF-SN52(B)J/HF-SN102(B)J/
HF-SN152(B)J
23
HF-SN202(B)J/HF-SN302(B)J
31