Compression spring D-389P Spring steel Ø 7 x 27 x 68 mm

Name: D-389P - Compression springs
SKU: D-389P
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	7	mm	Wire diameter
Di		mm	Inner coil diameter
D	27	mm	Mean coil diameter
De	34	mm	Outer coil diameter
Dd	19	mm	maximum diameter of mandrel
Dh	35.2	mm	minimum diameter of bush
L0	68	mm	unstressed spring length
Lk		mm	buckling length
Fn	2438.149	N	maximum force in static use
Ln	57.21	mm	Minimum length in static use
sn	10.79	mm	Maximum spring deflection in static use
Fndyn	1904.73	N	maximum force in dynamic use
Lndyn	59.57	mm	Minimum length in dynamic use
shdyn	5.66	mm	Maximum stroke in dynamic use
S	11.091	mm	pitch of spring
n	5.5	pc.	number of active coils
nt		pc.	total number of coils
R	225.947	N/mm	Spring rate
Weight	193.5269	g	weight of one spring
Fntol	365.55	N	(+/-) tolerance of maximum force in static use
Fndtol	286.05	N	(+/-) tolerance of maximum dynamic force
Detol	1	mm	(+/-) tolerances of outer coil diameter
L0tol	3.4	mm	(+/-) tolerance of unstressed spring length
Price group	AG	-	price group
F1tol		N	(+/-) tolerance of prestressed spring force
F2tol		N	(+/-) tolerance of loaded spring force