About Compression Springs

The compression spring is a helical spring with permanent clearance between active coils capable of carrying the outer opposing forces actuating in its axis.

Dimensions

d

wire diameter [mm, in]

D

mean spring diameter [mm, in]

D 1

outside spring diameter [mm, in]

D 2

inside spring diameter [mm, in]

H

working deflection [mm, in]

t

pitch of active coils in free state [mm, in]

a

space between active coils in free state [mm, in]

s x

spring deflection [mm, in]

L x

spring length [mm, in]

F x

working force exerted by the spring [N, lb]

W 8

deformation energy [J, ft lb]

x

index responding with the spring state

Coiling

  1. Right (usually)
  2. Left (must be notified in words)

States

  1. Free: the spring is not loaded (index 0)
  2. Pre loaded: smallest working load is applied to the spring (index 1)
  3. Fully loaded: maximum working load is applied to the spring (index 8)
  4. Limit: the spring is depressed up to coil touching (index 9)