Page 1176 - MiSUMi 2025

Round Wire Coil Springs, Deflection O.D. Referenced,

Stainless Steel, Ultra Heavy Load Technical Calculation Excerpted from GB/T 23935-2009 Economy series
Springs

O.D. D Free Length L M Material
0
φ10 or Less -0.5mm 50 or Less ±1.5mm SUS304-WPB
14 φ12 or More -0.8mm 60 or More ±2.5mm (Imported from Japan)
0

Springs

d 2D 2D d
F F
Round Wire Coil Springs 3L 3L

Closes Ends
Closes Ends
P.14-004 (*Both Ends Not Ground) (Both Ends Ground)
Tension Springs QFmax. (Allowable Deflection)=L×Fa%
E O.D. Referenced Type is manufactured giving priority to the outer diameter, with the inner diameter for reference only.
F
2Coil O.D. D
1Type 3Free Length L Wire Dia. Solid Length max. N {kgf} Fa%
d
max.
P.14-016 4- 10 0.65 10.3 3.75 12.3 {1.3}
2.5
7.0
15
18.4
{1.9}
0.7
Posts For Tension Springs 5- 5 0.75 14.4 1.25 24.5 {0.63}
20
{2.5}
5.0
0.6
6.1
2.9
10
{1.3}
2.5
6.9
0.75
12.3
0.8
9.8
P.14-020 15 0.85 13.4 3.75 18.4 {1.9}
20
24.5
{2.5}
5.0
25 0.9 17.8 6.25 30.6 {3.12}
2.5
24.5
6.8
{2.5}
0.9
6-10
Torsion Springs 15 1.0 10.5 3.75 36.8 {3.8}
20
14.6
5.0
{5.0}
49.0
1.1
25
{2.5}
6.9
2.5
1.1
8- 10 1.1 17.9 6.25 61.3 {6.26}
24.5
P.14-022 15 1.2 14.0 3.75 36.8 {3.8}
9.9
Disc Springs C-UBB 10-10 1.3 14.5 6.25 61.3 {6.3} 25
20
49.0
5.0
{5.0}
1.3
25
{2.5}
2.5
1.3
24.5
7.2
1.4
10.2
{3.8}
36.8
3.75
15
5.0
61.3
16.1
{6.3}
25
P.14-023 20 1.5 13.9 6.25 49.0 {5.0}
1.5
30 1.6 20.4 7.5 73.5 {7.5}
12-15 1.5 9.4 3.75 36.8 {3.8}
20 1.6 12.4 5.0 49.0 {5.0}
30 1.8 20.3 7.5 73.5 {7.5}
13-15 1.8 9.5 3.75 73.5 {7.5}
20 1.9 12.9 5.0 98.1 {10.01}
25 2.0 17.0 6.25 123.0 {12.55}
30 2.1 20.5 7.5 147.0 {15.0}
40 2.3 28.2 10.0 196.0 {20.0}
16-20 2.1 12.1 5.0 98.1 {10.01}
30 2.4 21.0 7.5 147.0 {15.0}
20-25 2.9 16.7 6.25 184.0 {18.8}
60 3.5 44.6 12.0 353.0 {36.02}
E The values of solid length are for reference only. There kgf (Load)= N/mm (Spring Constant)×0.101972×F (Deflection)
may be some variations depending on the lot. Load (kgf)=Load N×0.101972
E Always use within the allowable deflection Fmax.(mm).
E The number of coils is a reference value. There may be
some variations depending on the lot.
Ordering Part Number (1Type · 2Coil O.D. D) - 3Free Length L
Example C-UBB4 - 10
How to search Search on MISUMI official website Step 1 Step 2 Select Economy series
on website 1 C-UBB 2 coil spring # MISUMI
By Type Search on MISUMI official website and get your product By Keyword # Only MISUMI Economy series
14-013 Round Wire Coil Springs 14-014