Compression spring D-318B Spring steel Ø 4 x 45 x 68 mm

Name: D-318B - Compression springs
SKU: D-318B
Availability: InStock

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Formula symbols	Value	Unit	Description
Material	EN 10270-1	-	Type of material
Spring ends	Closed and ground	-	Spring ends
F1		N	prestressed spring force
L1		mm	Prestressed spring length
s1		mm	Prestressed spring deflection
F2		N	Loaded spring force
L2		mm	Loaded spring length
s2		mm	Loaded spring deflection
d	4	mm	Wire diameter
Di		mm	Inner coil diameter
D	45	mm	Mean coil diameter
De	49	mm	Outer coil diameter
Dd	39.8	mm	maximum diameter of mandrel
Dh	50.8	mm	minimum diameter of bush
L0	68	mm	unstressed spring length
Lk		mm	buckling length
Fn	342.968	N	maximum force in static use
Ln	26.06	mm	Minimum length in static use
sn	41.94	mm	Maximum spring deflection in static use
Fndyn	326.35	N	maximum force in dynamic use
Lndyn	28.09	mm	Minimum length in dynamic use
shdyn	24.94	mm	Maximum stroke in dynamic use
S	18.286	mm	pitch of spring
n	3.5	pc.	number of active coils
nt		pc.	total number of coils
R	8.177	N/mm	Spring rate
Weight	77.2352	g	weight of one spring
Fntol	24.58	N	(+/-) tolerance of maximum force in static use
Fndtol	24.33	N	(+/-) tolerance of maximum dynamic force
Detol	0.8	mm	(+/-) tolerances of outer coil diameter
L0tol	2.38	mm	(+/-) tolerance of unstressed spring length
Price group	AA	-	price group
F1tol		N	(+/-) tolerance of prestressed spring force
F2tol		N	(+/-) tolerance of loaded spring force