Extension Springs, Tension & Gate Springs | RS
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    Extension Springs

    An extension spring or tension spring is a length of tightly coiled metal, usually steel with hooks or loops at either end. Extension springs absorb and store energy. You can find out more in our extension springs guide.

    What does it do?

    An extension spring is a component that creates a resistance to a pulling force. Extension springs work by trying to pull two objects back together. The attached spring is pulled in opposite directions and the force and the stored energy to pull the two objects back together.

    Types

    Extension or tension springs selected by a few key attributes, they are:

    • Material – Steel or stainless steel
    • Free length - The overall length of the spring in its unloaded position
    • Max extended length – The length of the spring when it is fully extended
    • Outside diameter – The outside diameter of the springs coils
    • Wire diameter – The diameter of the metal used to make the spring
    • Spring rate – The force, quoted in N/mm
    • Max load – The load when the spring is at full extension

    Uses

    63 Products showing for Extension Springs

    £1.722
    Each (In a Pack of 5)
    Steel
    105mm
    292.00mm
    15mm
    1.4mm
    57.1N
    0.26N/mm
    -
    £8.363
    Each (In a Pack of 3)
    Steel
    109mm
    128mm
    25mm
    5mm
    1110N
    49.7N/mm
    -
    Steel
    87.2mm
    134.80mm
    12mm
    1.8mm
    141N
    2.52N/mm
    -
    £1.74
    Each (In a Pack of 10)
    Steel
    59mm
    98.6mm
    8.5mm
    1.2mm
    62.8N
    1.35N/mm
    -
    Stainless Steel
    25mm
    80.80mm
    5mm
    0.45mm
    5.40N
    0.09N/mm
    -
    £1.404
    Each (In a Pack of 10)
    Steel
    66.2mm
    178.20mm
    13mm
    1.2mm
    42.2N
    0.32N/mm
    -
    Steel
    85.5mm
    133.10mm
    18mm
    2.5mm
    237N
    4.27N/mm
    -
    Stainless Steel
    22.1mm
    42.30mm
    3.2mm
    0.45mm
    8.91N
    0.407N/mm
    -
    Steel
    60.6mm
    188.6mm
    9mm
    0.8mm
    19N
    0.13N/mm
    -
    Steel
    87.2mm
    103.4mm
    20mm
    4mm
    757N
    39.7N/mm
    -
    £1.626
    Each (In a Pack of 10)
    Steel
    39.7mm
    58.4mm
    11mm
    1.6mm
    111N
    5.02N/mm
    -
    Stainless Steel
    47.6mm
    147.30mm
    7mm
    0.63mm
    10.2N
    0.09N/mm
    -
    Steel
    31mm
    53.6mm
    4.5mm
    0.63mm
    18.3N
    0.7N/mm
    -
    £1.312
    Each (In a Pack of 10)
    Steel
    32.6mm
    86.1mm
    9mm
    0.8mm
    19N
    0.3N/mm
    -
    £2.012
    Each (In a Pack of 5)
    Steel
    61mm
    73.2mm
    14mm
    2.8mm
    400N
    27.9N/mm
    -
    £1.294
    Each (In a Pack of 10)
    Steel
    34.4mm
    76.70mm
    12mm
    1.1mm
    35.8N
    0.72N/mm
    -
    Steel
    88.6mm
    206.6mm
    24mm
    2.2mm
    127N
    0.92N/mm
    -
    Steel
    87.7mm
    224.70mm
    17mm
    1.6mm
    11N
    0.46N/mm
    -
    Steel
    44.1mm
    73.80mm
    6.3mm
    0.9mm
    37.1N
    1.06N/mm
    -
    Steel
    254mm
    -
    -
    -
    -
    -
    -
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