McMaster-Carr logo
    Filter by
    System of Measurement
    Length
    Attribute Image
    Mounting Hole Diameter
    Compressed OD @ Maximum Load
    Energy Capacity
    Compressed Length @ Maximum Load
    Attribute Image
    End Type
    Base Diameter
    Attribute Image
    Maximum Temperature
    Minimum Temperature
    Color
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    12 Products

    Ultra-Shock-Absorbing Rubber Compression Springs

    Image of Product. Front orientation. Compression Springs. Ultra-Shock-Absorbing Rubber Compression Springs.
    Best for taking the hardest hits with minimal compression, these stout springs absorb more shock than any other spring we offer. The largest absorbs 17,000 in·lbf of energy, which is the force of a 20-lb. sledgehammer strike. Made from a polyester/rubber blend, they stay springy longer than metal and plastic springs—with documented cases up to one million cycles. They also stand up to oils, fuels, and mild cleaning solutions.
    Secure by inserting a fastener through the hole at the base.
    Hardness—As the durometer gets higher, the springs absorb more energy but compress less.
    Lg.
    OD
    ID
    Compressed Lg.
    @ Max. Load
    Compressed OD @
    Max. Load
    Max. Load,
    lb.
    Energy Cap.,
    in·lbf
    Hardness
    Temp. Range,
    ° F
    Each
    0.438"0.47"0.23"0.24"0.6"20020Durometer 55D-40 to 12000000000000

    Extension Springs

    The farther you stretch these springs, the harder they pull to bring the two ends back together. They're commonly used to tension cable, return an air cylinder to its starting point, or hold a door closed.
    Loop End—The most secure attachment method. With fully closed loops, there's no risk of slipping off.
    Hook End—Hook into closed holes, such as hanger bolt eyes. These springs work best when kept under tension, as they're more likely to slip off than loop-end springs when tension is released. Also known as machine hook ends.
    Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're easier to extend than steel, but can’t handle as high a load.
    Minimum Load—The amount of force required to start extending the spring.
    Maximum Load—The amount of force required to fully extend the spring.
    Load,
    lb.
    Lg.
    OD
    Wire
    Dia.
    Extended Lg.
    @ Max. Load
    Min.
    Max.
    Spring Rate,
    lbf/in
    Pkg.
    Qty.
    Pkg.
    Loop End
    Image of Product. Front orientation. Extension Springs. Loop End.
     
    Highly Corrosion-Resistant 316 Stainless Steel
    0.438"0.078"0.007"0.797"0.020.090.2310000000000000
    0.438"0.109"0.01"0.717"0.040.180.611000000000000
    0.438"0.109"0.012"0.627"0.070.321.581000000000000
     
    Hook End
    Image of Product. Front orientation. Extension Springs. Hook End.
     
    Highly Corrosion-Resistant 316 Stainless Steel
    0.438"0.063"0.008"0.908"0.040.450.885000000000000
    0.438"0.063"0.011"0.655"0.11.144.85000000000000
    0.438"0.078"0.008"1.192"0.040.390.475000000000000
    0.438"0.078"0.011"0.808"0.091.032.545000000000000
    0.438"0.094"0.012"0.818"0.112.45000000000000
    0.438"0.094"0.016"0.626"0.192.26115000000000000
    0.438"0.109"0.012"0.962"0.090.921.585000000000000
    0.438"0.109"0.014"0.813"0.131.463.565000000000000
     
    back to top