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Extension Springs | Produced In Spring Steel (Music Wire)

Technical drawing - Extension spring - Range D

Range D. This series is available in three different lengths: 300.00 mm, 500.00 mm and 1,000.00 mm. These springs are mainly used for testing – you can cut the springs to the desired length and then create loops.

Please note that these springs do not have loops.

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

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.

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Shopping Options
d - Wire diameter (mm)
De - External diameter (mm)
Di - Internal diameter (mm)
Lk - Spring body length (mm)

Items 1-10 of 50

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View prices - Add to Cart Material d
Wire diameter (mm)
De
External diameter (mm)
Di
Internal diameter (mm)
Lk
Spring body length (mm)
Range SKU Stock Tech Drawing Read More 3D CAD
Music wire 0.40 2.40 1.60 1,000.00 D 39000 39000
Music wire 0.40 3.40 2.60 1,000.00 D 39010 39010
Music wire 0.50 3.50 2.50 1,000.00 D 39020 39020
Music wire 0.50 5.50 4.50 1,000.00 D 39030 39030
Music wire 0.60 6.00 4.80 300.00 D 1 1
Music wire 0.63 4.50 3.24 1,000.00 D 39040 39040
Music wire 0.63 7.00 5.74 1,000.00 D 39050 39050
Music wire 0.75 7.00 5.50 300.00 D 2 2
Music wire 0.80 5.50 3.90 1,000.00 D 39060 39060
Music wire 0.80 8.00 6.40 300.00 D 3 3
  1. 39000
    In stock: 13
    Material Music wire
    d - Wire diameter (mm) 0.40
    De - External diameter (mm) 2.40
    Di - Internal diameter (mm) 1.60
    Lk - Spring body length (mm) 1,000.00
    Range D
  2. 39010
    In stock: 16
    Material Music wire
    d - Wire diameter (mm) 0.40
    De - External diameter (mm) 3.40
    Di - Internal diameter (mm) 2.60
    Lk - Spring body length (mm) 1,000.00
    Range D
  3. 39020
    In stock: 29
    Material Music wire
    d - Wire diameter (mm) 0.50
    De - External diameter (mm) 3.50
    Di - Internal diameter (mm) 2.50
    Lk - Spring body length (mm) 1,000.00
    Range D
  4. 39030
    In stock: 13
    Material Music wire
    d - Wire diameter (mm) 0.50
    De - External diameter (mm) 5.50
    Di - Internal diameter (mm) 4.50
    Lk - Spring body length (mm) 1,000.00
    Range D
  5. 1
    In stock: 61
    Material Music wire
    d - Wire diameter (mm) 0.60
    De - External diameter (mm) 6.00
    Di - Internal diameter (mm) 4.80
    Lk - Spring body length (mm) 300.00
    Range D
  6. 39040
    In stock: 16
    Material Music wire
    d - Wire diameter (mm) 0.63
    De - External diameter (mm) 4.50
    Di - Internal diameter (mm) 3.24
    Lk - Spring body length (mm) 1,000.00
    Range D
  7. 39050
    In stock: 14
    Material Music wire
    d - Wire diameter (mm) 0.63
    De - External diameter (mm) 7.00
    Di - Internal diameter (mm) 5.74
    Lk - Spring body length (mm) 1,000.00
    Range D
  8. 2
    In stock: 344
    Material Music wire
    d - Wire diameter (mm) 0.75
    De - External diameter (mm) 7.00
    Di - Internal diameter (mm) 5.50
    Lk - Spring body length (mm) 300.00
    Range D
  9. 39060
    In stock: 8
    Material Music wire
    d - Wire diameter (mm) 0.80
    De - External diameter (mm) 5.50
    Di - Internal diameter (mm) 3.90
    Lk - Spring body length (mm) 1,000.00
    Range D
  10. 3
    In stock: 541
    Material Music wire
    d - Wire diameter (mm) 0.80
    De - External diameter (mm) 8.00
    Di - Internal diameter (mm) 6.40
    Lk - Spring body length (mm) 300.00
    Range D
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Material

DIN 17223 C-Wire WERKSTOFF NO. 1.200
Working temperature between -30 ºC and +120 ºC
Produced in spring steel for use in dry environment. The spring steel is not rust-resistant. If needed for use in humid/wet environment, choose from our collection of models in stainless steel here.

Loops

These springs comes with no loops.

Spring constant

There are no spring constants for this range of springs. These springs are designed to test and try where the springs can be shortened to achieve the desired length. The spring constant depends on the length, so we are unable to provide a general spring constant.

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.

The springs are intended for tests and experiments. You can cut them to the required length.

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)

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