Servo Motors With Special Shafts; D Cut - Mitsubishi Electric GENERAL PURPOSE AC SERVO MR-E- A/AG Instruction Manual

14. SERVO MOTOR

14.6.4 Servo motors with special shafts

The standard shaft of the servo motor is straight without a keyway. Shafts with keyway and D cut are
also available. Except for the servo motor with reduction gear.
These shafts are not appropriate for applications where the servo motor is started and stopped frequently.
Use a friction coupling or the like with such keys since we cannot guarantee such trouble as broken shafts
due to loose keys.
Servo Motor
Keyway
HC-SFE52 to 202
(Note 2)
HC-KFE13
HC-KFE23 to 73
(Note 1)
Note: 1. With a key.
2. Without a key.
3. This is a standard. For shape, refer to Section 14.9.
(1) Keyway
(a) With key
R
Q
QK
QL
A
A
HC-MF23K to 73K
Servo Motor Model
HC-KFE23K 43K
HC-KFE73K
(b) Without key
R
Q
QK QL
A
A
r

14.6.5 D cut

R
QK
Shaft Shape
D cut Straight
(Note 3)
(Note 3)
(Note 3)
R
Q
QK
QL
A
A
HC-UF23K to 73K
S R
14h6 30
(14) (1.18)
19h6 40
(19) (1.57)
Servo motor
M8 threads
Depth 20(0.79)
HC-SFE52K to 152K
U
HC-SFE202K
Section A-A
Servo Motor Model
HC-KFE053D 13D
S
W
Y
S
Section A-A
Variable Dimensions
Q W QK
27 5 20
(1.06) (0.20) (0.79)
37 6 25
(1.46) (0.24) (0.98)
S R
24h6 55
(0.94) (2.17)
35 79
(1.38) (3.11)
25(0.98)
14 - 25
QL U
3 3
(0.12) (0.12) (0.20)
5 3.5
(0.20) (0.14) (0.24)
Variable Dimensions
Q W QK
50 0 36
8
0.036
(0.31)
(1.97) (1.42)
0 55
10
0.036
-
(0.39)
(2.17)
Variable Dimensions
R QK
20.5(0.81)
[Unit: mm]
([Unit: in])
H Y
5 M4 Depth 15
(0.59)
6 M5 Depth 20
(0.79)
[Unit: mm]
([Unit: in])
QL U r
5 0.2 4
4
0
(0.16)
(0.20) (0.16)
5 0.2 5
5
0
(0.20)
(0.20) (0.20)
[Unit: mm]
([Unit: in])
S
8h(0.32)