Compression spring D-145DH Spring steel Ø 1 x 20 x 48.5 mm

Name: D-145DH - Compression springs
SKU: D-145DH
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	1	mm	Wire diameter
Di		mm	Inner coil diameter
D	20	mm	Mean coil diameter
De	21	mm	Outer coil diameter
Dd	18.2	mm	maximum diameter of mandrel
Dh	22	mm	minimum diameter of bush
L0	48.5	mm	unstressed spring length
Lk		mm	buckling length
Fn	4.802	N	maximum force in static use
Ln	16.45	mm	Minimum length in static use
sn	32.05	mm	Maximum spring deflection in static use
Fndyn	4.355	N	maximum force in dynamic use
Lndyn	19.43	mm	Minimum length in dynamic use
shdyn	29.07	mm	Maximum stroke in dynamic use
S	5.588	mm	pitch of spring
n	8.5	pc.	number of active coils
nt		pc.	total number of coils
R	0.15	N/mm	Spring rate
Weight	4.0958	g	weight of one spring
Fntol	1.25	N	(+/-) tolerance of maximum force in static use
Fndtol	1.25	N	(+/-) tolerance of maximum dynamic force
Detol	0.5	mm	(+/-) tolerances of outer coil diameter
L0tol	7.88	mm	(+/-) tolerance of unstressed spring length
Price group	E	-	price group
F1tol		N	(+/-) tolerance of prestressed spring force
F2tol		N	(+/-) tolerance of loaded spring force