Compression spring D-389N Spring steel Ø 7 x 43 x 228 mm

Name: D-389N - Compression springs
SKU: D-389N
Availability: InStock

Scaled prices - Compression spring D-389N

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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	7	mm	Wire diameter
Di		mm	Inner coil diameter
D	43	mm	Mean coil diameter
De	50	mm	Outer coil diameter
Dd	34.8	mm	maximum diameter of mandrel
Dh	51.4	mm	minimum diameter of bush
L0	228	mm	unstressed spring length
Lk	83.2	mm	buckling length
Fn	1756.744	N	maximum force in static use
Ln	139.49	mm	Minimum length in static use
sn	88.51	mm	Maximum spring deflection in static use
Fndyn	1588.06	N	maximum force in dynamic use
Lndyn	147.99	mm	Minimum length in dynamic use
shdyn	45.15	mm	Maximum stroke in dynamic use
S	14.258	mm	pitch of spring
n	15.5	pc.	number of active coils
nt		pc.	total number of coils
R	19.848	N/mm	Spring rate
Weight	719.1555	g	weight of one spring
Fntol	106	N	(+/-) tolerance of maximum force in static use
Fndtol	104	N	(+/-) tolerance of maximum dynamic force
Detol	0.6	mm	(+/-) tolerances of outer coil diameter
L0tol	4.04	mm	(+/-) tolerance of unstressed spring length
Price group	AP	-	price group
F1tol		N	(+/-) tolerance of prestressed spring force
F2tol		N	(+/-) tolerance of loaded spring force