Compression spring D-398 Spring steel Ø 8 x 80 x 410 mm

Name: D-398 - Compression springs
SKU: D-398
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	8	mm	Wire diameter
Di		mm	Inner coil diameter
D	80	mm	Mean coil diameter
De	88	mm	Outer coil diameter
Dd	70	mm	maximum diameter of mandrel
Dh	90.8	mm	minimum diameter of bush
L0	410	mm	unstressed spring length
Lk		mm	buckling length
Fn	1753.88	N	maximum force in static use
Ln	141	mm	Minimum length in static use
sn	269	mm	Maximum spring deflection in static use
Fndyn	1646.3	N	maximum force in dynamic use
Lndyn	157.5	mm	Minimum length in dynamic use
shdyn	97.72	mm	Maximum stroke in dynamic use
S	32.16	mm	pitch of spring
n	12.5	pc.	number of active coils
nt		pc.	total number of coils
R	6.52	N/mm	Spring rate
Weight	1447.9653	g	weight of one spring
Fntol	77.5	N	(+/-) tolerance of maximum force in static use
Fndtol	76.3	N	(+/-) tolerance of maximum dynamic force
Detol	1.2	mm	(+/-) tolerances of outer coil diameter
L0tol	7.86	mm	(+/-) tolerance of unstressed spring length
Price group	AX	-	price group
F1tol		N	(+/-) tolerance of prestressed spring force
F2tol		N	(+/-) tolerance of loaded spring force