Page 1185 - MiSUMi 2025

Torsion Springs, Arm Angle (90°/135°/180°)

M Material S Surface Treatment
SUS304-WPB None

14 14

Springs Springs

Free Angle 90° Free Angle 135° Free Angle 180°
C-UA90R (Right Rotation) C-UA135R (Right Rotation) C-UA180R (Right Rotation)
Round Wire Coil Springs 90°±10° 135°±10° 180°±10° Coil Springs Round Wire
C-UA180L (Left Rotation)
C-UA135L (Left Rotation)
C-UA90L (Left Rotation)
P.14-004 L±0.5 Maximum Usage Angle P.14-004
4d L±0.5 4d 4d
Tension Springs 3Number of Coils n 2D±0.2 R±0.5 3Number of Coils n 2D±0.2 R±0.5 3Number of Coils n L±0.5 2D±0.2 R±0.5 Springs Tension

P.14-016 *The figure above shows the right-hand type. EUse the torsion spring in the helix direction. P.14-016

Posts For Tension Springs 1Type 2I.D. 3Number 4Wire Alteration Type Length Arm Angle Arm Angle Arm Angle Arm Angle Arm Angle Arm Angle Tension Springs Posts For
Part Number
Max. Usage Angle deg (°)
Arm Spring Constant (Torque) N·mm/deg
of Coils
Dia.
n
d
L·R
D
90°
135°
90°
135°
180°
180°
0.3
58
0.0289
60
0.0302
61
0.0295
A
56
54
0.3
52
0.0314
0.0304
0.0295
P.14-020 2 5 3 0.4 (Single arm length specified) 20 0.0882 0.0900 0.0920 46 45 43 P.14-020
B
0.4 (Single arm bending) 30 0.0912 0.0940 0.0970 42 40 39
0.0774
55
53
0.0736
0.0755
51
3
4
C
0.5
41
Torsion Springs C-UA90R (Right Rotation) 5 0.4 (Double arm length specified) 0.0617 0.0630 0.0643 71 68 66 Springs Torsion
0.1799
0.1845
0.1756
42
44
Free Angle 90°
D
53
0.5
0.1471
0.1533
51
0.1501
54
(Single arm length
52
0.0700
0.0744
0.0722
56
0.4
54
3
C-UA90L (Left Rotation)
E
0.5 specified+Single arm bending) 0.1680 0.1732 0.1787 42 41 40
0.1425
57
54
0.1357
52
0.1390
P.14-022 C-UA135R (Right Rotation) 4 4 5 0.6 (Double arm bending) 40 0.2763 0.2831 0.2903 48 47 45 P.14-022
Free Angle 135°
F
67
0.1161
69
0.5
0.1138
65
0.1185
(Double arm length
Disc Springs C-UA135L (Left Rotation) 5 3 4 0.5 specified+Double arm bending) 50 0.1368 0.1409 0.1454 55 52 51 Disc Springs
0.2363
0.6
59
0.2315
60
0.2413
58
specified+Single arm bending)
G
47
0.2974
44
0.2883
0.2797
42
(Single arm length
0.6
56
0.2373
58
0.2314
60
0.2259
Free Angle 180°
0.8
40
42
41
0.6936
0.7108
0.7289
H
(Double arm length
53
54
0.5811
0.6056
0.5931
52
0.8
C-UA180L (Left Rotation)
P.14-023 C-UA180R (Right Rotation) 5 0.6 specified+Double arm bending) 0.1894 0.1933 0.1974 75 73 71 P.14-023
0.6
52
50
0.2363
0.2436
0.2512
56
3 * No need to select here if there 0.7299 0.7523 0.7762 38 36 35
0.8 is no need of alterations 0.5891 0.6037 0.6190 50 48 47
6 4 1 * 40% discount from 30 PCS for 60 1.4045 1.4394 1.4760 42 40 39
5 0.8 alterations 0.4939 0.5041 0.5147 63 61 60
1 1.1765 1.2008 1.2262 51 50 49
EThe spring constant is the reference value when the arm length is cut to L/2 and R/2. 1N=0.101972kgf 1deg=1° (Angle)
Ordering Part Number (1Type · 2I.D. D) - 3Number of Coils n - 4Wire Dia. d
Example C-UA135R5 - 3 - 0.6
Ordering Part Number (1Type · 2I.D. D) - 3Number of Coils n - 4Wire Dia. d - Alteration Type - LC-RC-LZ-LBC-RZ-RBC
Alterations Example C-UA135R5 - 3 - 0.6 - B - LZ5-LBC90
Alterations Additional arm length cutting process Left Arm Bending Right Arm Bending
270° 0° (Up) 90° 0° (Up)
90°±10°
(Right-Hand Type) 90°±10° (Right-Hand Type) 180° (Down)
180° (Down) 90° LZ±0.5 RZ±0.5 270°
L(LC) R(RC)
LC
270° 0° (Up) 90° 0° (Up)
Spec. RC 90°±10°
(Left-Hand Type) 90°±10° (Left-Hand Type) 180° (Down) 270°
LZ±0.5
180° (Down) 90° L(LC) RZ±0.5
R(RC)
Cut the arm length to LC, RC. I LBC… Specify bending direction (See the figure above) I RBC...Specify bending direction (See the figure above)
ELC≥3, RC≥3 E Choose from LBC0, LBC90, LBC180 and LBC270 EChoose from RBC0, RBC90, RBC180 and RBC270
1mm increments I LZ...... Specify bending position (1mm increments) I RZ......Specify bending position (1mm increments)
E LZ≥3 L-LZ≥3 ERZ≥3 R-RZ≥3
14-021 Torsion Springs 14-022