Справочник Пользователя для Mitsubishi Electronics MR-E- A/AG
14 - 8
14. SERVO MOTOR
14.4.4 Permissible load for the shaft
POINT
Do not use a rigid coupling as it may apply excessive bending load to the
shaft, leading to shaft breakage.
(a) Use a flexible coupling and make sure that the misalignment of the shaft is less than the
permissible radial load.
(b) When using a pulley, sprocket or timing belt, select a diameter that will fit into the permissible
radial load.
(c) Excess of the permissible load can cause the bearing life to reduce and the shaft to break.
(d) The load indicated in this section is static load in a single direction and does not include eccentric
load. Make eccentric load as small as possible. Not doing so can cause the servo motor to be
damaged.
(1) Without reduction gear
(Note ) L
Permissible Radial Load
Permissible Thrust Load
Servo Motor
[mm]
[in]
[N]
[lb]
[N]
[lb]
053 / 13
25
0.98
88
20
59
13
23 / 43
30
1.18
245
55
98
22
HC-KFE
73
40
1.57
392
88
147
33
52 to 152
55
2.17
980
220
490
110
HC-SFE
202
79
3.11
2058
463
980
220
Note : For the symbols in the table, refer to the following diagram:
Radial load
Thrust load
L
L: Distance from flange mounting surface to load center
(2) With reduction gear
The permissible radial loads in the table are the values at the center of the reduction gear output
shaft.
Q/ 2
Q
(a) HC-KFE series
1) General industrial machine-compliant
Item
Gear
ratio
HC-KFE13(B)
G1
HC-KFE23(B)
G1
HC-KFE43(B)
G1
HC-KFE73(B)
G1
1/5
150
330
430
1/12
240
710
620
[N]
1/20
370
780
760
970
1/5
34
74
97
1/12
54
160
139
Permissible Radial Load
[lb]
1/20
83
175
171
218
1/5
200
350
430
1/12
320
720
620
[N]
1/20
450
780
760
960
1/5
45
79
97
1/12
72
162
139
Permissible Thrust Load
[lb]
1/20
101
175
171
216