Volute Spring | About Product | BU GIL SPRING CO., LTD.

Characteristic

1. Sharp load increase due to displacement

   For Volute Spring, the load increase almost linearly in conjunction with deformation when axial load works downward and sequentially contact the seat from the bottom plate with larger diameter. This plate does not work as a spring after the contact of seat, so the load tends to increase sharply due the displacement above a specic lead.

2. Vibration Damping Eect

   - It prevents the spring from excessive load working on spring.

   - It is used for the part on which large load works in relatively small spaces.

   - It dampens the vibration due to friction between plates.

3. Less Fatigue Life

   The stress of Volute Springs is mainly caused by the torsion of plate. The stress due to the curvature of plate is taken into consideration. Thus it, in fact, has the stress distribution that combines the above factors, reducing fatigue life.

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Application

• Shock Absorbing Device for Large Industrial Facilities
  • It absorbs large energy in space-volume ratio.
  • It damps vibrations using the friction between plates.
  • It is used as the suspension systems for railroads or heavy vehicles, and the shock absorbing devices for large industrial facilities.

Material

Korea Japan Germany SPS 3 SUP 6 51 Si 7 SPS 6 SUP 10 60CrV4 SPS 5 SUP 9 55 Cr 3

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Order Specification

Matters to record when placing an order

Standing Item Labeling Requirement
By Client Remarks 1 Meterial mm Select according to the standards of manufacturer unless otherwise specied. 2 External Diameter mm   3 Internal Diameter mm   4 Free Height mm   5 Taper Thickness mm   6 Taper Width mm   7 Volute Spring Deformation mm   8 Eective Number of Coil Coil   9 Taper Length(Left) mm   10 Taper Length(Right) mm   11 Other remarks Recording working conditions Application, Working Temperature, Working Environment

For the design and materials of springs, please consult with our technical sta.

These types of springs provide an opposing force when extended. An example of this would be the springs in a trampoline. An extension spring does not have a maximum extension length because it can be extended far past its elastic limit, causing permanent failure. This can be mitigated by making use of a drawbar spring wherein the extension is limited by an insert. In this case, the spring itself is a compression spring but the whole assembly extends in length the way an extension spring would. As the drawbar is extended the spring will compress (refer to the image below). Extension springs are often manufactured with either hooks or loops at the ends to act as attachment points.

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