Click Specification

Same specifications, different dimensions for other parts.

Cylindrical Coiled Tension Spring - Type LVI

GB /T 2088 (LVI) - 2009

Display drawing:

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs

Default density g/cm³

Nominal Diameter
d

0.5

0.6

0.8

D	mean diameter of coil
F₀	initial tension load /N
F₁	test load /N
H	length at active coils	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
f₁	deflection at test load	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
Spring rate(N/mm)	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5
per 1000 units≈kg	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5

3	3.5	4	5	6	3	4	5	6	7	4	5	6	8	9	5
1.6	1.2	0.9	0.6	0.4	3.3	1.9	1.2	0.8	0.6	5.9	3.8	2.6	1.5	1.2	9.2
14.4	12.3	10.8	8.6	7.2	23.9	17.9	14.3	11.9	10.2	40.4	32.3	26.9	20.2	18	61.5
4.6	4.6	4.6	4.6	4.6	5.6	5.6	5.6	5.6	5.6	7.4	7.4	7.4	7.4	7.4	9.3
5.8	5.8	5.8	5.8	5.8	6.9	6.9	6.9	6.9	6.9	9.2	9.2	9.2	9.2	9.2	11.5
6.6	6.6	6.6	6.6	6.6	7.9	7.9	7.9	7.9	7.9	10.6	10.6	10.6	10.6	10.6	13.3
8.3	8.3	8.3	8.3	8.3	9.9	9.9	9.9	9.9	9.9	13.2	13.2	13.2	13.2	13.2	16.5
9.6	9.6	9.6	9.6	9.6	11.6	11.6	11.6	11.6	11.6	15.4	15.4	15.4	15.4	15.4	19.3
10.7	10.7	10.7	10.7	10.7	12.9	12.9	12.9	12.9	12.9	17.2	17.2	17.2	17.2	17.2	21.5
13.2	13.2	13.2	13.2	13.2	15.9	15.9	15.9	15.9	15.9	21.2	21.2	21.2	21.2	21.2	26.5
15.6	15.6	15.6	15.6	15.6	18.8	18.8	18.8	18.8	18.8	25.0	25.0	25.0	25.0	25.0	31.3
20.8	20.8	20.8	20.8	20.8	24.9	24.9	24.9	24.9	24.9	33.2	33.2	33.2	33.2	33.2	41.5
4.6	6.4	8.5	13.3	19.4	3.6	6.6	10.6	15.5	21.2	4.5	7.3	10.7	19.6	25	5.5
5.9	8.1	10.8	17	25.2	4.6	8.4	13.4	19.7	27	5.7	9.3	13.7	24.9	31.8	7
5.3	9.8	15.7	22.9	31.5	5.3	9.8	15.7	22.9	31.5	6.7	10.8	15.9	29	37.1	8.1
8.7	11.9	15.9	25.1	37	6.7	12.4	19.8	29.1	39.8	8.5	13.6	20.1	36.7	46.9	10.3
10.2	14.1	18.8	29.5	43.3	7.9	14.5	23.4	34.2	47.1	10	16.1	23.6	43.2	55.3	12.1
11.4	15.8	21.1	33.2	48.9	8.9	16.4	26.3	38.4	52.7	11.2	18	26.6	48.6	62	13.6
14.3	19.6	26.2	41.2	60.7	11.1	20.4	32.6	47.8	65.8	13.9	22.4	33.1	60.3	77.1	16.9
19.8	27.2	36.1	57.1	83.8	13.1	24.2	38.8	56.6	78	16.5	26.6	39.3	71.6	91.8	20
22.7	31.3	41.6	65.6	96.3	17.6	32.4	51.8	76	104.3	22.1	35.7	52.6	95.9	122.6	26.8
2.77	1.74	1.17	0.6	0.35	5.75	2.42	1.24	0.718	0.452	7.66	3.92	2.27	0.952	0.673	9.58
2.18	1.37	0.92	0.47	0.27	4.51	1.9	0.975	0.564	0.355	6.02	3.08	1.78	0.752	0.528	7.52
1.87	1.18	0.79	0.4	0.23	3.87	1.63	0.836	0.484	0.305	5.16	2.64	1.53	0.645	0.453	6.45
1.47	0.929	0.622	0.319	0.184	3.06	1.29	0.661	0.382	0.241	4.08	2.09	1.21	0.51	0.358	5.1
1.25	0.789	0.528	0.271	0.157	2.6	1.1	0.561	0.325	0.204	3.46	1.77	1.03	0.433	0.304	4.33
1.12	0.702	0.47	0.241	0.139	2.31	0.975	0.499	0.289	0.182	3.08	1.58	0.913	0.385	0.271	3.85
0.896	0.565	0.378	0.194	0.112	1.86	0.784	0.402	0.232	0.146	2.48	1.27	0.734	0.31	0.218	3.1
0.648	0.408	0.274	0.14	0.081	1.57	0.661	0.338	0.196	0.123	2.09	1.07	0.619	0.261	0.183	2.61
0.564	0.355	0.238	0.122	0.0706	1.17	0.494	0.253	0.146	0.092	1.56	0.799	0.462	0.195	0.137	1.95
0.14	0.16	0.18	0.23	0.27	0.21	0.29	0.36	0.43	0.5	0.51	0.63	0.76	0.94	1.05	0.99
0.17	0.2	0.23	0.28	0.34	0.26	0.35	0.44	0.52	0.61	0.62	0.78	0.93	1.16	1.3	1.21
0.2	0.23	0.26	0.33	0.4	0.3	0.39	0.5	0.69	0.69	0.71	0.88	1.06	1.33	1.5	1.38
0.25	0.3	0.34	0.42	0.51	0.37	0.49	0.61	0.73	0.85	0.87	1.08	1.3	1.74	1.95	1.69
0.29	0.34	0.39	0.49	0.59	0.42	0.57	0.71	0.85	0.99	1	1.26	1.51	2.01	2.26	1.96
0.33	0.38	0.44	0.55	0.65	0.47	0.63	0.78	0.94	1.1	1.12	1.39	1.69	2.23	2.51	2.18
0.4	0.47	0.53	0.67	0.8	0.58	0.77	0.96	1.15	1.35	1.36	1.7	1.98	2.64	2.98	2.66
0.54	0.63	0.72	0.9	1.08	0.68	0.9	1.12	1.35	1.57	1.6	2	2.34	3.11	3.5	3.12
0.62	0.72	0.82	1.03	1.23	0.89	1.19	1.48	1.78	2.07	2.11	2.63	3.1	4.13	4.65	4.12

Nominal Diameter
d

1.2

1.6

D	mean diameter of coil
F₀	initial tension load /N
F₁	test load /N
H	length at active coils	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
f₁	deflection at test load	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
Spring rate(N/mm)	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5
per 1000 units≈kg	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5

6	7	8	10	12	6	7	8	10	12	14	8	10	12	14	16
6.4	4.7	3.6	2.3	1.6	13.3	9.8	7.5	4.8	3.3	2.4	23.6	15.1	10.5	7.7	5.9
51.3	44	38.5	30.8	25.6	86.4	74.0	64.8	51.8	43.2	37.0	145	116	97	83.1	72.7
9.3	9.3	9.3	9.3	9.3	11.1	11.1	11.1	11.1	11.1	11.1	14.8	14.8	14.8	14.8	14.8
11.5	11.5	11.5	11.5	11.5	13.8	13.8	13.8	13.8	13.8	13.8	18.4	18.4	18.4	18.4	18.4
13.3	13.3	13.3	13.3	13.3	15.9	15.9	15.9	15.9	15.9	15.9	21.2	21.2	21.2	21.2	21.2
16.5	16.5	16.5	16.5	16.5	19.8	19.8	19.8	19.8	19.8	19.8	26.4	26.4	26.4	26.4	26.4
19.3	19.3	19.3	19.3	19.3	23.1	23.1	23.1	23.1	23.1	23.1	30.8	30.8	30.8	30.8	30.8
21.5	21.5	21.5	21.5	21.5	25.8	25.8	25.8	25.8	25.8	25.8	34.4	34.4	34.4	34.4	34.4
26.5	26.5	26.5	26.5	26.5	31.8	31.8	31.8	31.8	31.8	31.8	42.4	42.4	42.4	42.4	42.4
31.3	31.3	31.3	31.3	31.3	37.5	37.5	37.5	37.5	37.5	37.5	50.0	50.0	50.0	50.0	50.0
41.5	41.5	41.5	41.5	41.5	49.8	49.8	49.8	49.8	49.8	49.8	66.4	66.4	66.4	66.4	66.4
8.1	11.3	14.9	23.8	34.6	6.4	8.9	11.8	19	27.7	38.2	7.9	12.9	19.1	26.4	34.8
10.3	14.3	19	30.3	44.1	8.1	11.3	15	19.5	35.3	48.7	10.1	16.4	24.2	33.5	44.5
12	16.7	22.2	35.4	51.4	9.4	13.2	17.6	28.1	41.3	56.8	11.8	19.1	28.3	39.1	51.8
15.2	21.1	28.1	44.7	65	11.9	16.7	22.2	35.6	52.2	71.9	14.9	24.1	35.7	49.6	65.5
17.9	24.9	32.9	52.7	76.7	14.1	19.6	26.2	42	61.5	84.6	17.5	28.4	42.2	58.4	77.1
25.1	28.1	37.1	59.1	86	15.8	21.8	29.4	47	69	95.1	19.7	31.9	47.3	65.6	86.6
25.1	34.8	46.2	73.6	107.1	19.7	27.4	36.5	58.5	85.8	118.1	24.5	39.7	58.8	81.5	107.7
29.7	41.3	54.7	87.4	127	23.4	32.6	43.4	69.4	101.8	140.1	29	47.1	69.8	96.7	128
39.7	55.3	73.3	116.8	170.2	31.2	43.7	58	92.9	136.2	188	38.9	63.1	93.5	129.6	171.3
5.54	3.49	2.34	1.20	0.693	11.5	7.24	4.85	2.48	1.44	0.905	15.3	7.84	4.54	2.86	1.92
4.35	2.74	1.84	0.94	0.544	9.03	5.69	3.81	2.41	1.13	0.711	12	6.16	3.57	2.25	1.5
3.73	2.35	1.57	0.806	0.467	7.74	4.87	3.26	1.67	0.967	0.609	10.3	5.28	3.06	1.93	1.29
2.95	1.86	1.24	0.637	0.369	6.12	3.85	2.58	1.32	0.765	0.481	8.15	4.18	2.42	1.52	1.02
2.51	1.58	1.06	0.541	0.313	5.19	3.27	2.19	1.12	0.649	0.409	6.93	3.55	2.05	1.29	0.866
1.79	1.4	0.941	0.482	0.279	4.62	2.95	1.95	0.999	0.578	0.364	6.17	3.16	1.83	1.15	0.771
1.79	1.13	0.756	0.387	0.224	3.72	2.34	1.57	0.803	0.465	0.293	4.96	2.54	1.47	0.925	0.62
1.51	0.952	0.638	0.326	0.189	3.13	1.97	1.32	0.677	0.392	0.247	4.18	2.14	1.24	0.78	0.522
1.13	0.711	0.476	0.244	0.141	2.34	1.47	0.988	0.506	0.293	0.184	3.12	1.6	0.925	0.582	0.39
1.19	1.39	1.59	1.99	2.38	1.72	2	2.29	2.86	3.43	4	4.07	5.08	6.1	7.12	8.13
1.45	1.69	1.94	2.42	2.91	2.09	2.44	2.79	2.93	4.18	4.88	4.96	6.2	7.44	8.68	9.92
1.66	1.93	2.21	2.76	3.31	2.38	2.78	3.18	3.97	4.77	5.56	5.65	7.07	8.48	9.89	11.3
2.03	2.37	2.71	3.39	4.07	2.93	3.42	3.9	4.88	5.86	6.83	6.94	8.68	10.4	12.2	13.9
2.35	2.75	3.14	3.92	4.71	3.39	3.95	4.52	5.65	6.78	7.91	8.03	10	12.1	14.1	16.1
3.2	3.05	3.49	4.36	5.23	3.77	4.34	5.02	6.28	7.53	8.79	8.93	11.2	13.4	15.6	17.9
3.2	3.73	4.26	5.33	6.39	4.6	5.37	6.14	7.67	9.2	10.7	10.9	13.6	16.4	19.1	21.8
3.75	4.37	5	6.25	7.5	5.4	6.3	7.2	9	10.8	12.6	12.8	16	19.2	22.4	25.6
4.94	5.76	6.59	8.22	9.88	7.11	8.3	9.48	11.9	14.2	16.6	16.9	21.1	25.3	29.5	33.7

Nominal Diameter
d

1.6

2.5

D	mean diameter of coil
F₀	initial tension load /N
F₁	test load /N
H	length at active coils	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
f₁	deflection at test load	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
Spring rate(N/mm)	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5
per 1000 units≈kg	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5

18	10	12	14	16	18	20	12	14	16	18	20	25	14	16	18
4.7	37	25.7	18.8	14.4	11.4	9.2	62.7	46.1	35.3	27.9	22.6	14.4	95.6	73.2	57.8
64.7	215	179	153	134	119	107	339	291	255	226	204	163	475	416	370
14.8	18.5	18.5	18.5	18.5	18.5	18.5	23.1	23.1	23.1	23.1	23.1	23.1	27.8	27.8	27.8
18.4	23.0	23.0	23.0	23.0	23.0	23.0	28.8	28.8	28.8	28.8	28.8	28.8	34.5	34.5	34.5
21.2	26.5	26.5	26.5	26.5	26.5	26.5	33.1	33.1	33.1	33.1	33.1	33.1	39.8	39.8	39.8
26.4	33.0	33.0	33.0	33.0	33.0	33.0	41.3	41.3	41.3	41.3	41.3	41.3	49.5	49.5	49.5
30.8	38.5	38.5	38.5	38.5	38.5	38.5	48.1	48.1	48.1	48.1	48.1	48.1	57.8	57.8	57.8
34.4	43.0	43.0	43.0	43.0	43.0	43.0	53.8	53.8	53.8	53.8	53.8	53.8	64.5	64.5	64.5
42.4	53.0	53.0	53.0	53.0	53.0	53.0	66.3	66.3	66.3	66.3	66.3	66.3	79.5	79.5	79.5
50.0	62.5	62.5	62.5	62.5	62.5	62.5	78.1	78.1	78.1	78.1	78.1	78.1	93.8	93.8	93.8
66.4	83	83	83	83	83	83	103.8	103.8	103.8	103.8	103.8	103.8	124.5	124.5	124.5
44.4	9.3	13.8	19.2	25.6	32.8	40.9	10.2	14.4	19.3	24.7	31.1	49.7	10.7	14.5	18.8
56.6	11.9	17.6	24.5	32.6	41.7	52	13	18.3	24.5	31.4	39.5	63.2	13.6	18.4	23.8
66.2	13.8	20.5	28.6	38	48.7	60.7	15.2	21.3	28.6	36.7	46	73.6	15.9	21.6	27.9
83.8	17.5	26	36.2	48	61.5	77	19.2	27	36.1	46.4	58.3	128.1	20.2	27.2	35.3
98.1	20.6	30.6	42.5	56.7	72.7	90.6	22.6	31.8	42.6	54.7	68.7	110.1	23.7	32	41.5
110.9	23.1	34.4	47.8	63.6	81.5	101.6	25.3	35.7	47.9	61.3	77.2	123.8	26.7	36	46.7
137.9	28.7	42.7	59.4	79.2	101.5	126.2	31.6	44.4	59.5	76.5	96	153.5	33.3	44.8	58
163.5	34.1	50.8	70.6	93.4	120.1	149.8	37.4	52.7	70.6	90.5	114.1	182.1	39.4	53.1	68.9
219	45.6	67.8	94.5	125.6	160.8	200.4	50.1	70.6	94.3	121.5	152.4	243.6	52.7	71.1	92.1
1.35	19.2	11.1	6.98	4.68	3.28	2.39	27.1	17	11.4	8.02	5.84	2.99	35.3	23.7	16.6
1.06	15	8.71	5.48	3.67	2.58	1.88	21.3	13.4	8.97	6.3	4.59	2.35	27.8	18.6	13.1
0.906	12.9	7.46	4.7	3.15	2.21	1.61	18.2	11.5	7.69	5.4	3.94	2.02	23.8	15.9	11.2
0.716	10.2	5.9	3.71	2.49	1.75	1.27	14.4	9.07	6.08	4.27	3.11	11.59	18.8	12.6	8.85
0.608	8.66	5.01	3.16	2.11	1.48	1.08	12.2	7.7	5.16	3.62	2.64	1.35	16	10.7	7.52
0.541	7.71	4.46	2.81	1.88	1.32	0.963	10.9	6.86	4.59	3.23	2.35	1.2	14.2	9.53	6.69
0.435	6.2	3.59	2.26	1.51	1.06	0.775	8.75	5.51	3.69	2.59	1.89	0.968	11.4	7.66	5.38
0.367	5.22	3.02	1.9	1.28	0.896	0.653	7.38	4.65	3.11	2.19	1.59	0.816	9.64	6.46	4.53
0.274	3.9	2.26	1.42	0.952	0.669	0.488	5.51	3.47	2.33	1.63	1.19	0.61	7.2	4.82	3.39
9.15	7.94	9.53	11.1	12.7	14.3	15.9	14.9	17.4	19.9	22.3	24.8	31	23.0	28.6	32.2
11.2	9.68	11.6	13.6	15.5	17.4	19.4	18.2	21.2	24.2	27.2	30.3	37.8	28.5	34.9	39.2
12.7	11	13.3	15.5	17.7	19.9	22.1	20.7	24.2	27.6	31.1	34.5	43.1	32.8	39.8	44.7
15.6	13.6	16.3	19	21.7	24.4	27.1	25.4	29.7	33.9	38.1	42.4	53	40.7	48.8	54.9
18.1	15.7	18.8	22	25.1	28.2	31.4	29.4	34.3	39.2	44.1	49	61.3	47.4	56.5	63.5
20.1	17.4	20.9	24.4	27.9	31.4	34.9	32.7	38.1	43.6	49	54.5	68.1	54.9	62.8	70.6
24.6	21.3	25.6	29.8	34.1	38.4	42.6	40	46.6	53.3	59.9	66.6	83.2	67.1	76.7	86.3
28.8	25	30	35	40	45	50	46.9	54.7	62.5	70.3	78.1	92.6	78.7	90	101
37.9	32.9	39.5	46.1	52.7	59.3	65.9	61.7	72	82.3	92.6	103	129	104	119	133

Nominal Diameter
d

3.5

D	mean diameter of coil
F₀	initial tension load /N
F₁	test load /N
H	length at active coils	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
f₁	deflection at test load	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
Spring rate(N/mm)	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5
per 1000 units≈kg	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5

20	22	25	18	20	22	25	28	35	22	25	28	32	35	40	45
46.8	38.7	29.9	107	86.8	71.7	55.5	44.2	28.4	123	94.7	75.4	57.8	48.3	37	29.2
333	303	266	587	528	480	423	377	302	694	611	545	477	436	382	339
27.8	27.8	27.8	32.4	32.4	32.4	32.4	32.4	32.4	37.0	37.0	37.0	37.0	37.0	37.0	37.0
34.5	34.5	34.5	40.3	40.3	40.3	40.3	40.3	40.3	46.0	46.0	46.0	46.0	46.0	46.0	46.0
39.8	39.8	39.8	46.4	46.4	46.4	46.4	46.4	46.4	53.0	53.0	53.0	53.0	53.0	53.0	53.0
49.5	49.5	49.5	57.8	57.8	57.8	57.8	57.8	57.8	66.0	66.0	66.0	66.0	66.0	66.0	66.0
57.8	57.8	57.8	67.4	67.4	67.4	67.4	67.4	67.4	77.0	77.0	77.0	77.0	77.0	77.0	77.0
64.5	64.5	64.5	75.3	75.3	75.3	75.3	75.3	75.3	86.0	86.0	86.0	86.0	86.0	86.0	86.0
79.5	79.5	79.5	92.8	92.8	92.8	92.8	92.8	92.8	106.0	106.0	106.0	106.0	106.0	106.0	106.0
93.8	93.8	93.8	109.4	109.4	109.4	109.4	109.4	109.4	125.0	125.0	125.0	125.0	125.0	125.0	125.0
124.5	124.5	124.5	145.3	145.3	145.3	145.3	145.3	145.3	166.0	166.0	166.0	166.0	166.0	166.0	166.0
23.7	29	38	15.6	19.6	24.2	32	40.7	65.3	19.8	26.3	33.5	44.8	54.2	72	92.2
30.1	37	48.4	19.8	25.1	30.7	40.7	51.8	83.2	25.3	33.5	42.7	57	69	91.8	118.7
35.1	43.1	56.5	23.2	29.2	35.8	47.5	60.4	97	29.4	39.1	50	66.5	80.6	107.1	137.1
44.4	54.5	71.5	29.3	36.8	45.5	60	76.3	122.7	37.3	49.6	63.2	84.2	102	135.3	173.1
52.2	64.2	84	34.5	43.7	53.5	70.7	89.9	144.8	43.9	58.2	74.4	99.1	120	159.7	203.8
58.6	72.2	94.4	38.7	48.8	60.1	79.4	101.2	161.9	49.2	65.4	83.6	111.5	134.6	178.8	229.5
73	89.6	117.5	48.2	60.8	74.8	98.8	125.6	201.2	61.3	81.4	103.9	138.3	167.8	222.6	284.2
86.5	106.6	139.7	57.1	72.1	88.8	117	149.2	240	72.7	96.5	123.3	164.4	198.8	263.4	337.8
115.9	142.9	187.4	76.6	96.5	118.7	157.1	199.3	320.8	97.4	129.4	165.4	220.6	265.5	353.8	452.3
12.1	9.11	6.21	30.8	22.5	16.9	11.5	8.18	4.19	28.8	19.6	14	9.35	7.15	4.79	3.36
9.52	7.15	4.88	24.2	17.6	13.3	9.03	6.43	3.29	22.6	15.4	11	7.35	5.62	3.76	2.61
8.16	6.13	4.18	20.7	15.1	11.4	7.74	5.51	2.82	19.4	13.2	9.4	6.3	4.81	3.22	2.26
6.45	4.85	3.3	16.4	12	8.98	6.12	4.36	2.23	15.3	10.4	7.43	4.98	3.8	2.55	1.79
5.48	4.12	2.81	13.9	10.1	7.63	5.2	3.7	1.89	13	8.87	6.31	4.23	3.23	2.16	1.52
4.88	3.66	2.5	12.4	9.04	6.79	4.63	3.29	1.69	11.6	7.89	5.62	3.76	2.88	1.93	1.35
3.92	2.95	2.01	9.96	7.26	5.46	3.72	2.65	1.36	9.31	6.34	4.52	3.03	2.31	1.55	1.09
3.31	2.48	1.69	8.4	6.12	4.6	3.14	2.23	1.14	7.85	5.35	3.81	2.55	1.95	1.31	0.917
2.47	1.85	1.26	6.27	4.57	3.44	2.34	1.67	0.853	5.86	3.99	2.84	1.9	1.46	0.975	0.685
35.7	39.3	44.7	43.8	48.6	53.5	60.8	68.1	85.1	69.9	79.4	89	102	111	127	143
43.7	47.9	54.5	53.4	59.3	65.3	74.2	83.1	104	85.2	96.9	109	124	136	155	174
49.7	54.7	62.1	60.9	67.6	74.4	84.5	94.7	118	97.2	110	124	141	155	177	199
61	67.1	76.3	74.7	83.1	91.4	103	116	145	119	136	152	174	190	217	244
70.5	77.7	88.3	86.5	96.1	106	120	135	168	138	157	176	201	220	251	282
78.5	86.3	98.1	96.1	107	118	134	150	187	153	174	195	223	244	279	314
95.9	106	120	118	131	144	163	183	228	188	213	239	273	298	341	384
112	124	141	138	153	168	191	214	268	220	250	280	320	350	400	450
148	163	185	182	202	222	252	282	353	290	329	369	422	461	527	593

Nominal Diameter
d

4.5

D	mean diameter of coil
F₀	initial tension load /N
F₁	test load /N
H	length at active coils	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
f₁	deflection at test load	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
Spring rate(N/mm)	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5
per 1000 units≈kg	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5

25	28	32	35	40	45	50	25	28	32	35	40	45	55	32	35
152	121	92.6	77.4	62.8	46.8	37.9	232	184	141	118	90.3	71.3	47.8	292	244
870	777	680	621	544	483	435	1154	1030	902	824	721	641	525	1505	1375
41.6	41.6	41.6	41.6	41.6	41.6	41.6	46.3	46.3	46.3	46.3	46.3	46.3	46.3	55.5	55.5
51.8	51.8	51.8	51.8	51.8	51.8	51.8	57.5	57.5	57.5	57.5	57.5	57.5	57.5	69.0	69.0
59.6	59.6	59.6	59.6	59.6	59.6	59.6	66.3	66.3	66.3	66.3	66.3	66.3	66.3	79.5	79.5
74.3	74.3	74.3	74.3	74.3	74.3	74.3	82.5	82.5	82.5	82.5	82.5	82.5	82.5	99.0	99.0
86.6	86.6	86.6	86.6	86.6	86.6	86.6	96.3	96.3	96.3	96.3	96.3	96.3	96.3	116.0	116.0
96.8	96.8	96.8	96.8	96.8	96.8	96.8	107.5	107.5	107.5	107.5	107.5	107.5	107.5	129.0	129.0
119.3	119.3	119.3	119.3	119.3	119.3	119.3	132.5	132.5	132.5	132.5	132.5	132.5	132.5	159	159
140.6	140.6	140.6	140.6	140.6	140.6	140.6	156.3	156.3	156.3	156.3	156.3	156.3	156.3	188	188
186.8	186.8	186.8	186.8	186.8	186.8	186.8	207.5	207.5	207.5	207.5	207.5	207.5	207.5	249	249
15.6	29.3	39.2	47.7	62.7	80.9	101	19.2	24.8	33.4	40.6	53.9	69.4	106	25.6	31.3
29.1	37.3	49.8	60.5	79.8	103.1	128.5	24.5	31.6	42.5	51.5	68.7	88.3	135.2	32.6	39.9
33.9	43.4	58.2	70.5	93.1	120.2	150.4	28.6	36.8	49.4	59.8	80.1	103	157.5	38	46.4
43	55.1	73.7	89.3	117.9	152	190	36.2	46.7	62.4	76	101.4	130.4	199.7	48.1	58.7
50.6	65	86.8	104.9	138.7	179.5	223.1	42.7	54.9	73.9	89.5	119.5	153.6	235.1	56.7	69
57	72.9	97.4	117.9	155.7	201	251.3	47.8	61.8	82.8	100.6	134.2	172.6	263.6	63.5	77.5
70.4	90.7	121.1	146.9	194	250.7	312.7	59.5	76.9	103	125	166.9	214.2	329.1	79.3	96.8
83.8	107.5	143.6	174.2	230.2	296.7	371.1	70.4	91.1	122.2	148.3	197.7	243.5	388	94	114.7
112.2	144.2	192.6	233.3	308.5	396.5	496.4	94.6	121.9	163.7	198.9	265	341.1	521	125.8	153.6
46.1	22.4	15.0	11.4	7.67	5.39	3.93	47.9	34.1	22.8	17.4	11.7	8.21	4.5	47.3	36.2
24.7	17.6	11.8	8.99	6.03	4.23	3.09	37.6	26.8	17.9	13.7	9.18	6.45	3.53	37.2	28.4
21.2	15.1	10.1	7.71	5.17	3.63	2.64	32.2	23	15.4	11.8	7.87	5.53	3.03	31.9	24.4
16.7	11.9	7.97	6.09	4.08	2.87	2.09	25.5	18.1	12.2	9.29	6.22	4.37	2.39	25.2	19.3
14.2	10.1	6.77	5.18	3.47	2.43	1.78	21.6	15.4	10.3	7.89	5.28	3.71	2.03	21.4	16.4
12.6	9	6.03	4.61	3.09	2.17	1.58	19.3	13.7	9.19	7.02	4.7	3.3	1.81	19.1	14.6
10.2	7.23	4.85	3.7	2.48	1.74	1.27	15.5	11	7.39	5.65	3.78	2.66	1.45	15.3	11.7
8.57	6.1	4.09	3.12	2.09	1.47	1.07	13.1	9.29	6.23	4.76	3.19	2.34	1.23	12.9	9.87
6.4	4.55	3.05	2.33	1.56	1.1	0.8	9.75	6.94	4.65	3.55	2.38	1.67	0.916	9.64	7.37
101	113	129	141	161	181	201	124	139	159	174	199	223	273	228	250
123	137	157	172	196	221	245	151	170	194	212	242	272	333	279	281
140	157	179	196	224	252	280	173	193	221	242	276	311	380	318	348
172	192	220	240	275	309	343	212	237	271	297	339	381	466	391	427
199	222	254	278	318	357	397	245	275	314	343	392	441	539	452	494
221	247	282	309	353	397	441	272	305	349	381	436	490	599	502	549
270	302	345	378	432	485	539	333	373	426	466	533	599	732	614	671
316	354	405	443	506	569	633	390	437	500	547	625	703	859	720	787
417	467	534	584	666	750	834	515	576	659	720	823	926	1130	948	1040

Nominal Diameter
d

D	mean diameter of coil
F₀	initial tension load /N
F₁	test load /N
H	length at active coils	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
f₁	deflection at test load	n=8.25
		n=10.5
		n=12.25
		n=15.5
		n=18.25
		n=20.5
		n=25.5
		n=30.25
		n=40.5
Spring rate(N/mm)	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5
per 1000 units≈kg	n=8.25
	n=10.5
	n=12.25
	n=15.5
	n=18.25
	n=20.5
	n=25.5
	n=30.25
	n=40.5

40	45	50	60	70	40	45	50	55	60	70	80
187	148	120	83.2	61.1	592	468	379	313	263	193	148
1204	1070	963	803	688	2753	2447	2203	2002	1835	1573	1377
55.5	55.5	55.5	55.5	55.5	74	74	74	74	74	74	74
69.0	69.0	69.0	69.0	69.0	92	92	92	92	92	92	92
79.5	79.5	79.5	79.5	79.5	106	106	106	106	106	106	106
99.0	99.0	99.0	99.0	99.0	132	132	132	132	132	132	132
116.0	116.0	116.0	116.0	116.0	154	154	154	154	154	154	154
129.0	129.0	129.0	129.0	129.0	172	172	172	172	172	172	172
159	159	159	159	159	212	212	212	212	212	212	212
188	188	188	188	188	250	250	250	250	250	250	250
249	249	249	249	249	332	332	332	332	332	332	332
42	54.2	68	100.3	138.7	28.2	36.8	46.5	57.3	69.3	96.5	128.3
53.5	68.8	86.5	127.6	176.6	35.9	46.8	59.2	72.8	88.3	123.2	163.4
62.4	80.2	100.8	148.7	205.5	41.9	55.7	70.4	87.1	102.7	143.3	190.5
78.8	101.8	126.4	188.4	260.1	53	69.2	87.3	107.6	129.9	181.3	241
92.5	119.7	150.3	221.5	307.3	62.5	81.4	103.1	127	152.6	213.6	283.8
104.3	134.6	168.9	249.1	344.5	70.2	91.2	115.4	141.9	172.2	240	319.2
129.7	167.3	209.7	310.3	429.4	87.1	113.7	143.6	177.2	214.2	298.7	396.5
153.9	198.7	249.4	367.2	509.7	103.4	134.6	170.5	210.1	254	353.8	470.9
205.9	265.7	333.2	493	680.7	138.5	181.6	228.3	281.5	340.3	474.2	630.3
24.2	17	12.4	7.18	4.52	76.6	53.8	39.2	29.5	22.7	14.3	9.58
19	13.4	9.75	5.64	3.55	60.2	42.3	30.8	23.2	17.8	11.2	7.52
16.3	11.5	8.36	4.84	3.05	51.6	35.5	25.9	19.4	15.3	9.63	6.45
12.9	9.06	6.67	3.82	2.41	40.8	28.6	20.9	15.7	12.1	7.61	5.1
11	7.7	5.61	3.25	2.04	34.6	24.3	17.7	13.3	10.3	6.46	4.33
9.75	6.85	4.99	2.89	1.82	30.8	21.7	15.8	11.9	9.13	5.75	3.85
7.84	5.51	4.02	2.32	1.46	24.8	17.4	12.7	9.53	7.34	4.62	3.1
6.61	4.64	3.38	1.96	1.23	20.9	14.7	10.7	8.04	6.19	3.9	2.61
4.94	3.47	2.53	1.46	0.921	15.6	10.9	7.99	6	4.62	2.91	1.95
286	322	357	429	500	508	572	635	699	762	890	1020
349	392	436	523	610	620	697	775	852	930	1080	1240
398	447	497	596	696	707	809	899	989	1060	1240	1410
488	549	610	732	854	868	976	1080	1190	1300	1520	1740
565	635	706	847	989	1000	1130	1260	1380	1510	1760	2010
628	706	785	941	1100	1120	1260	1390	1530	1670	1950	2230
767	863	959	1150	1340	1360	1530	1700	1880	2050	2390	2730
900	1010	1120	1350	1570	1600	1800	2000	2200	2400	2800	3200
1190	1330	1480	1780	2070	2110	2370	2630	2900	3160	3690	4210

①,length at active coils ≈ （n+1）d
②,h = （0.25~0.35）D

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