Chat with us, powered by LiveChat

Extension Springs | Produced In Stainless Steel

Technical drawing - Extension spring - Range ABC
Range C
The C series is a small series of springs in stainless steel wire. Although it is a small series, it is a good complement to series A & B. The dimensions are the same for electrogalvanised and stainless steel, the only difference being the quality of the wire and the force.

We offer a larger selection of extension springs produced in stainless steel here.

See quantity discount by clicking on the green basket next to the item.
We can deliver within 24 hours, if you order before 15:45 from Monday till Thursday and before 14:30 on Fridays, if the item is in stock. Orders placed Saturday and Sunday are being shipped the following Monday.

Shop By
Shopping Options
d - Wire diameter (mm)
De - External diameter (mm)
L0 - Unloaded length (mm)
Ln - Max. loaded length (mm)
Sn - Maximum travel (mm)
Fn - Maximum load at Ln (N)
F0 - Initial force (N)
R - Spring constant (N/mm)

10 Items

Set Descending Direction
View prices - Add to Cart Material d
Wire diameter (mm)
De
External diameter (mm)
L0
Unloaded length (mm)
Ln
Max. loaded length (mm)
Sn
Maximum travel (mm)
Fn
Maximum load at Ln (N)
F0
Initial force (N)
R
Spring constant (N/mm)
Range SKU Stock Tech Drawing Read More 3D CAD
Stainless steel 302 0.60 8.00 59.00 280.27 221.27 9.26 1.00 0.04 C 503RF 503 RF
Stainless steel 302 0.80 9.00 39.00 128.11 89.11 18.65 3.00 0.18 C 502RF 502 RF
Stainless steel 302 0.85 7.00 34.50 65.97 31.47 28.07 6.00 0.70 C 501RF 501 RF
Stainless steel 302 0.85 8.00 60.00 151.71 91.71 24.76 5.00 0.22 C 504RF 504 RF
Stainless steel 302 1.00 9.00 60.50 140.65 80.14 34.95 7.00 0.35 C 505RF 505 RF
Stainless steel 302 1.00 10.00 112.00 323.40 211.40 31.63 6.00 0.12 C 507RF 507 RF
Stainless steel 302 1.25 13.00 63.50 176.39 112.89 46.12 8.00 0.34 C 508RF 508 RF
Stainless steel 302 1.40 11.00 83.00 171.76 88.73 74.10 6.00 0.77 C 506RF 506 RF
Stainless steel 302 1.50 16.00 131.00 393.68 262.68 63.11 11.00 0.20 C 510RF 510 RF
Stainless steel 302 1.75 14.00 125.00 245.56 120.56 110.12 24.00 0.71 C 509RF 509 RF
  1. 503 RF
    In stock: 1,129
    Material Stainless steel 302
    d - Wire diameter (mm) 0.60
    De - External diameter (mm) 8.00
    L0 - Unloaded length (mm) 59.00
    Ln - Max. loaded length (mm) 280.27
    Sn - Maximum travel (mm) 221.27
    Fn - Maximum load at Ln (N) 9.26
    F0 - Initial force (N) 1.00
    R - Spring constant (N/mm) 0.04
    Range C
  2. 502 RF
    In stock: 1,208
    Material Stainless steel 302
    d - Wire diameter (mm) 0.80
    De - External diameter (mm) 9.00
    L0 - Unloaded length (mm) 39.00
    Ln - Max. loaded length (mm) 128.11
    Sn - Maximum travel (mm) 89.11
    Fn - Maximum load at Ln (N) 18.65
    F0 - Initial force (N) 3.00
    R - Spring constant (N/mm) 0.18
    Range C
  3. 501 RF
    In stock: 823
    Material Stainless steel 302
    d - Wire diameter (mm) 0.85
    De - External diameter (mm) 7.00
    L0 - Unloaded length (mm) 34.50
    Ln - Max. loaded length (mm) 65.97
    Sn - Maximum travel (mm) 31.47
    Fn - Maximum load at Ln (N) 28.07
    F0 - Initial force (N) 6.00
    R - Spring constant (N/mm) 0.70
    Range C
  4. 504 RF
    In stock: 737
    Material Stainless steel 302
    d - Wire diameter (mm) 0.85
    De - External diameter (mm) 8.00
    L0 - Unloaded length (mm) 60.00
    Ln - Max. loaded length (mm) 151.71
    Sn - Maximum travel (mm) 91.71
    Fn - Maximum load at Ln (N) 24.76
    F0 - Initial force (N) 5.00
    R - Spring constant (N/mm) 0.22
    Range C
  5. 505 RF
    In stock: 1,104
    Material Stainless steel 302
    d - Wire diameter (mm) 1.00
    De - External diameter (mm) 9.00
    L0 - Unloaded length (mm) 60.50
    Ln - Max. loaded length (mm) 140.65
    Sn - Maximum travel (mm) 80.14
    Fn - Maximum load at Ln (N) 34.95
    F0 - Initial force (N) 7.00
    R - Spring constant (N/mm) 0.35
    Range C
  6. 507 RF
    In stock: 1,158
    Material Stainless steel 302
    d - Wire diameter (mm) 1.00
    De - External diameter (mm) 10.00
    L0 - Unloaded length (mm) 112.00
    Ln - Max. loaded length (mm) 323.40
    Sn - Maximum travel (mm) 211.40
    Fn - Maximum load at Ln (N) 31.63
    F0 - Initial force (N) 6.00
    R - Spring constant (N/mm) 0.12
    Range C
  7. 508 RF
    In stock: 1,283
    Material Stainless steel 302
    d - Wire diameter (mm) 1.25
    De - External diameter (mm) 13.00
    L0 - Unloaded length (mm) 63.50
    Ln - Max. loaded length (mm) 176.39
    Sn - Maximum travel (mm) 112.89
    Fn - Maximum load at Ln (N) 46.12
    F0 - Initial force (N) 8.00
    R - Spring constant (N/mm) 0.34
    Range C
  8. 506 RF
    In stock: 2,285
    Material Stainless steel 302
    d - Wire diameter (mm) 1.40
    De - External diameter (mm) 11.00
    L0 - Unloaded length (mm) 83.00
    Ln - Max. loaded length (mm) 171.76
    Sn - Maximum travel (mm) 88.73
    Fn - Maximum load at Ln (N) 74.10
    F0 - Initial force (N) 6.00
    R - Spring constant (N/mm) 0.77
    Range C
  9. 510 RF
    In stock: 471
    Material Stainless steel 302
    d - Wire diameter (mm) 1.50
    De - External diameter (mm) 16.00
    L0 - Unloaded length (mm) 131.00
    Ln - Max. loaded length (mm) 393.68
    Sn - Maximum travel (mm) 262.68
    Fn - Maximum load at Ln (N) 63.11
    F0 - Initial force (N) 11.00
    R - Spring constant (N/mm) 0.20
    Range C
  10. 509 RF
    In stock: 1,291
    Material Stainless steel 302
    d - Wire diameter (mm) 1.75
    De - External diameter (mm) 14.00
    L0 - Unloaded length (mm) 125.00
    Ln - Max. loaded length (mm) 245.56
    Sn - Maximum travel (mm) 120.56
    Fn - Maximum load at Ln (N) 110.12
    F0 - Initial force (N) 24.00
    R - Spring constant (N/mm) 0.71
    Range C
per page
Material

DIN 17224 AISI 302 WERKSTOFF NO. 1.4310
Working temperature between -200 ºC and +250 ºC.
Produced in stainless steel for use in all environment. The stainless steel is rust-resistant.

Calculation of spring force

Fn for stainless steel is approx. 12% weaker than Fn for exact model produced in spring steel (music wire).

Calculation of the initial force (F0):
The initial force F0 or the initial tension is for guidance only due to differing production processes.
F0 = Fn - (R * Sn). A rule of thumb is however that F0 is 10-15% of Fn.

For example, for stock number 32600, Fn = 237 N, R = 2,67N/mm og Sn = 75,70mm. F0 = 237N - (2,67N/mm * 75,70mm) = 237N - 202N = 35N

The calculation of spring force for a given length:
Calculation of spring force at a given length is: F0 + (travel * R).
For example, for stock number 32600 where R = 2.67 N/mm, the desired travel is 55 mm and F0 is approx. 35 N. 35N + (55mm * 2,67N/mm) = 35N + 147N = 182N

Winding direction

Normally right-handed

Standard springs are not defined with a specific direction of wind. Depending on production, the springs may be produced either right or left wound. If you require a specific direction of wind a special spring must be produced.

Misc.

If an extension spring with an exact value for one of the following parameters is required, springs must be custom-made:
- Loop type
- Loop height (LH)
- Loop position (X)
- Loop width (if the spring is to be incorporated into a tube)
- Opening at loop (m)
- Initial force (F0)

Internet Explorer Incompatibility

This website unfortunately does not work well with Internet Explorer. We recommend using one of the following free browsers:

Copyright © 2024 Sodemann Industrifjedre A/S. All rights reserved.