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6449: ESTB 2,5X20X145

All dimensions are in mm
Dt = Wire diameter
De = Outer diameter
Lo = Free length
nt = Number of active coils
c = Rate
Fo = Initial force in Newtons; required force before the spring starts to extend
Ln = Permitted loaded length for dynamic load
F1 = Spring force in Newtons at L1 = s x c + Fo
s = Deflection L1 - Lo
G = Thread
Material: Spring steel EN 10270-1-SH
Tolerances: SS 2384
Max. working temperature: 120 °C
1 kp = 9.80665 Newtons, 1 Newton = 0.10197 kp

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Extension spring with turnable bolt

Dimensions and characteristics
Part number 6449
Dt 2,5
De 20
L0 145
nv 46
c 1.6
F0 29
Ln 281.8
T M6
Mtr EN 10270-1-SH
Tillåten utökad längd för dynamisk belastning
Ange L1:
Resultat:
  • F (Fjäderkraft) =   00.00   Newton
  • S (Avböjning ) =   00.00   mm