Compression springs
formula unit
technical term
inquiry formula unit
technical term
inquiry
d
mm wire diameter
L0tol
mm +/- tolerance of unstressed spring length
D
mm mean coil diameter
Ln
mm minimum length in static use
Dd
mm maximum diameter of mandrel
sn
mm maximum spring deflection in static use
De
mm outer coil diameter
n
pc.
number of active coils
Detol
mm +/- tolerance of outer coil diameter
R
N/mm spring rate
Dh
mm minimum diameter of bush
Fndyn N
maximum force in dynamic use
Fn
N
maximum force in static use
Fndtol
N
+/- tolerance of maximum dynamic force
Fntol
N
+/- tolerance of maximum static force
Lndyn mm minimum length in dynamic use
Lk
mm buckling length
shdyn mm maximum stroke in dynamic use
L0
mm unstressed spring length
Data sheets at
federnshop.com
Compression
springs
15
