Compression spring D-249A Spring steel Ø 2 x 16 x 56 mm

Name: D-249A - Compression springs
SKU: D-249A
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	2	mm	Wire diameter
Di	-	mm	Inner coil diameter
D	16	mm	Mean coil diameter
De	18	mm	Outer coil diameter
Dd	13.5	mm	maximum diameter of mandrel
Dh	18.6	mm	minimum diameter of bush
L0	56	mm	unstressed spring length
Lk		mm	buckling length
Fn	148.262	N	maximum force in static use
Ln	24.33	mm	Minimum length in static use
sn	31.67	mm	Maximum spring deflection in static use
Fndyn	140.453	N	maximum force in dynamic use
Lndyn	26	mm	Minimum length in dynamic use
shdyn	15.28	mm	Maximum stroke in dynamic use
S	6.353	mm	pitch of spring
n	8.5	pc.	number of active coils
nt	-	pc.	total number of coils
R	4.682	N/mm	Spring rate
Weight	13.1066	g	weight of one spring
Fntol	8.81	N	(+/-) tolerance of maximum force in static use
Fndtol	8.7	N	(+/-) tolerance of maximum dynamic force
Detol	0.3	mm	(+/-) tolerances of outer coil diameter
L0tol	1.41	mm	(+/-) tolerance of unstressed spring length
Price group	G	-	price group
F1tol	-	N	(+/-) tolerance of prestressed spring force
F2tol	-	N	(+/-) tolerance of loaded spring force