DS Series Tensile Coil Spring

Brand :

KSSC

Caution

Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

Product Description

Meets standard dimensions for D series (compliant with DIN 2098).
This is a cylindrical tensile coil spring with a wire that has been converted to the stainless steel used in springs.

Product Specifications

Winding direction	Right-handed or left-handed depending on the convenience of the manufacturing machine
End Shapes	Reverse Hook
Outer Diameter	Based on JIS B2704-3 cold rolled extension coil spring coil diameter tolerance Class 2
Custom length	It is used as a reference value and does not allow for tolerance
Allowable load (N)	Based on JIS B2704-3 cold rolled extension coil spring load tolerance at the specified length Class 2
Spring constant	It is used as a reference value and does not allow for tolerance
Initial tension	It is used as a reference value and does not allow for tolerance
Low temperature annealing	After spring forming, low temperature annealing is applied to improve performance
Operating temperature limit	-30°C to +200°C
Spring lifespan	The allowable load is displayed as a guide for use. This is calculated based on the allowable torsional stress of approx. 64% with reference to JIS B2704, but it does not mean that the lifespan is guaranteed. For the spring, please select an appropriate load that is less than or equal to this allowable load, considering the required number of repetitions (lifespan) from the relationship between the upper limit stress and the lower limit stress in use. Reference: JIS B2704-1 Coil Spring - Part 1: Basic calculation method for compression and extension coil springs

Standard table

Outer Diameter: 3 mm to 3.83 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8501	3	0.5	10.1	8.06	11.8	10.5	2.646	3.262
8502	3	0.5	11.1	8.06	13.1	12.5	2.646	2.74
8503	3	0.5	12.6	8.06	15.1	15.5	2.646	2.21
8504	3	0.5	14.6	8.06	17.7	19.5	2.646	1.756
8505	3	0.5	17.1	8.06	21	24.5	2.646	1.398
8506	3	0.5	20.6	8.06	25.6	31.5	2.646	1.087
8507	3	0.5	24.6	8.06	30.8	39.5	2.646	0.867
8508	3	0.5	29.6	8.06	37.4	49.5	2.646	0.692
8509	3	0.5	36.1	8.06	46	62.5	2.646	0.548
8510	3	0.5	44.7	8.06	57.3	79.5	2.646	0.431
8511	3.7	0.5	11.7	6.583	14.9	10.5	1.617	1.555
8512	3.7	0.5	12.7	6.583	16.5	12.5	1.617	1.307
8513	3.7	0.5	14.2	6.583	18.9	15.5	1.617	1.054
8514	3.7	0.5	16.2	6.583	22.1	19.5	1.617	0.838
8515	3.7	0.5	18.7	6.583	26.1	24.5	1.617	0.667
8516	3.7	0.5	22.2	6.583	31.8	31.5	1.617	0.519
8517	3.7	0.5	26.2	6.583	38.2	39.5	1.617	0.414
8518	3.7	0.5	31.2	6.583	46.3	49.5	1.617	0.33
8519	3.7	0.5	38.2	6.583	57.2	62.5	1.617	0.261
8520	3.7	0.5	46.2	6.583	70.4	79.5	1.617	0.205
8521	3.83	0.63	12.9	12.432	15	10.5	4.067	3.92
8522	3.83	0.63	14.1	12.432	16.6	12.5	4.067	3.293
8523	3.83	0.63	16	12.432	19.1	15.5	4.067	2.656
8524	3.83	0.63	18.5	12.432	22.5	19.5	4.067	2.111
8525	3.83	0.63	21.7	12.432	26.7	24.5	4.067	1.68
8526	3.83	0.63	26.1	12.432	32.5	31.5	4.067	1.307
8527	3.83	0.63	31.2	12.432	39.2	39.5	4.067	1.042
8528	3.83	0.63	37.5	12.432	47.6	49.5	4.067	0.832
8529	3.83	0.63	45.7	12.432	58.4	62.5	4.067	0.659
8530	3.83	0.63	56.4	12.432	72.6	79.5	4.067	0.518

Outer Diameter: 4.5 mm to 4.8 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8531	4.5	0.5	13.4	5.573	19.1	10.5	1.029	0.796
8532	4.5	0.5	14.4	5.573	21.2	12.5	1.029	0.669
8533	4.5	0.5	15.9	5.573	24.3	15.5	1.029	0.539
8534	4.5	0.5	17.9	5.573	28.5	19.5	1.029	0.429
8535	4.5	0.5	20.4	5.573	33.7	24.5	1.029	0.341
8536	4.5	0.5	23.9	5.573	41	31.5	1.029	0.266
8537	4.5	0.5	27.9	5.573	49.4	39.5	1.029	0.212
8538	4.5	0.5	32.9	5.573	59.8	49.5	1.029	0.169
8539	4.5	0.5	39.4	5.573	73.4	62.5	1.029	0.134
8540	4.5	0.5	47.9	5.573	91.1	79.5	1.029	0.105
8541	4.63	0.63	14.6	10.398	18.5	10.5	2.607	2.007
8542	4.63	0.63	15.9	10.398	20.5	12.5	2.607	1.686
8543	4.63	0.63	17.7	10.398	23.4	15.5	2.607	1.36
8544	4.63	0.63	20.3	10.398	27.5	19.5	2.607	1.081
8545	4.63	0.63	23.5	10.398	32.6	24.5	2.607	0.86
8546	4.63	0.63	27.9	10.398	39.5	31.5	2.607	0.669
8547	4.63	0.63	32.9	10.398	47.5	39.5	2.607	0.534
8548	4.63	0.63	39.2	10.398	57.5	49.5	2.607	0.426
8549	4.63	0.63	47.4	10.398	70.5	62.5	2.607	0.337
8550	4.63	0.63	58.1	10.398	87.5	79.5	2.607	0.265
8551	4.8	0.8	16.2	20.096	18.8	10.5	6.772	5.129
8552	4.8	0.8	17.8	20.096	20.8	12.5	6.772	4.384
8553	4.8	0.8	20.2	20.096	24	15.5	6.772	3.536
8554	4.8	0.8	23.4	20.096	28.1	19.5	6.772	2.81
8555	4.8	0.8	27.4	20.096	33.4	24.5	6.772	2.237
8556	4.8	0.8	33	20.096	40.7	31.5	6.772	1.74
8557	4.8	0.8	39.4	20.096	49	39.5	6.772	1.387
8558	4.8	0.8	47.4	20.096	59.4	49.5	6.772	1.107
8559	4.8	0.8	57.8	20.096	73	62.5	6.772	0.877
8560	4.8	0.8	71.4	20.096	90.7	79.5	6.772	0.689

Outer Diameter: 5.5 mm to 5.8 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8561	5.5	0.5	15.6	4.611	25.3	10.5	0.666	0.408
8562	5.5	0.5	16.6	4.611	28.1	12.5	0.666	0.343
8563	5.5	0.5	18.1	4.611	32.4	15.5	0.666	0.276
8564	5.5	0.5	20.1	4.611	38.1	19.5	0.666	0.22
8565	5.5	0.5	22.6	4.611	45.2	24.5	0.666	0.175
8566	5.5	0.5	26.1	4.611	55.1	31.5	0.666	0.136
8567	5.5	0.5	30.1	4.611	66.5	39.5	0.666	0.108
8568	5.5	0.5	35.1	4.611	80.7	49.5	0.666	0.087
8569	5.5	0.5	41.6	4.611	99.2	62.5	0.666	0.069
8570	5.5	0.5	50.1	4.611	123.3	79.5	0.666	0.054
8571	5.63	0.63	16.8	8.803	23.7	10.5	1.666	1.028
8572	5.63	0.63	18.1	8.803	26.4	12.5	1.666	0.863
8573	5.63	0.63	19.9	8.803	30.2	15.5	1.666	0.696
8574	5.63	0.63	22.5	8.803	35.4	19.5	1.666	0.553
8575	5.63	0.63	25.6	8.803	41.8	24.5	1.666	0.44
8576	5.63	0.63	30.1	8.803	50.9	31.5	1.666	0.343
8577	5.63	0.63	35.1	8.803	61.2	39.5	1.666	0.273
8578	5.63	0.63	41.4	8.803	74.1	49.5	1.666	0.218
8579	5.63	0.63	49.6	8.803	90.9	62.5	1.666	0.173
8580	5.63	0.63	60.3	8.803	112.9	79.5	1.666	0.136
8581	5.8	0.8	18.4	16.808	23.1	10.5	4.332	2.672
8582	5.8	0.8	20	16.808	25.6	12.5	4.332	2.245
8583	5.8	0.8	22.4	16.808	29.3	15.5	4.332	1.81
8584	5.8	0.8	25.6	16.808	34.3	19.5	4.332	1.439
8585	5.8	0.8	29.6	16.808	40.5	24.5	4.332	1.145
8586	5.8	0.8	35.2	16.808	49.2	31.5	4.332	0.891
8587	5.8	0.8	41.6	16.808	59.2	39.5	4.332	0.71
8588	5.8	0.8	49.6	16.808	71.6	49.5	4.332	0.567
8589	5.8	0.8	60.1	16.808	87.9	62.5	4.332	0.449
8590	5.8	0.8	73.6	16.808	109	79.5	4.332	0.353

Outer Diameter: 6 mm to 6.93 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8591	6	1	20.3	30.681	23.4	10.5	10.584	6.524
8592	6	1	22.3	30.681	26	12.5	10.584	5.48
8593	6	1	25.3	30.681	29.8	15.5	10.584	4.419
8594	6	1	29.3	30.681	35	19.5	10.584	3.513
8595	6	1	34.3	30.681	41.5	24.5	10.584	2.796
8596	6	1	41.3	30.681	50.5	31.5	10.584	2.175
8597	6	1	49.3	30.681	60.9	39.5	10.584	1.734
8598	6	1	59.3	30.681	73.8	49.5	10.584	1.384
8599	6	1	72.3	30.681	90.6	62.5	10.584	1.096
8600	6	1	89.3	30.681	112.6	79.5	10.584	0.862
8601	6.8	0.5	18.5	3.761	34.9	10.5	0.421	0.204
8602	6.8	0.5	19.5	3.761	39	12.5	0.421	0.171
8603	6.8	0.5	21	3.761	45.2	15.5	0.421	0.138
8604	6.8	0.5	23	3.761	53.4	19.5	0.421	0.11
8605	6.8	0.5	25.5	3.761	63.7	24.5	0.421	0.087
8606	6.8	0.5	29	3.761	78.2	31.5	0.421	0.068
8607	6.8	0.5	33	3.761	94.6	39.5	0.421	0.054
8608	6.8	0.5	38	3.761	115.3	49.5	0.421	0.043
8609	6.8	0.5	44.4	3.761	142	62.5	0.421	0.034
8610	6.8	0.5	53	3.761	177.1	79.5	0.421	0.027
8611	6.93	0.63	19.7	7.225	31.7	10.5	1.049	0.514
8612	6.93	0.63	20.9	7.225	35.2	12.5	1.049	0.432
8613	6.93	0.63	22.8	7.225	40.5	15.5	1.049	0.348
8614	6.93	0.63	25.3	7.225	47.6	19.5	1.049	0.277
8615	6.93	0.63	28.5	7.225	56.5	24.5	1.049	0.22
8616	6.93	0.63	32.9	7.225	69	31.5	1.049	0.171
8617	6.93	0.63	38	7.225	83.2	39.5	1.049	0.137
8618	6.93	0.63	44.2	7.225	100.9	49.5	1.049	0.109
8619	6.93	0.63	52.4	7.225	124	62.5	1.049	0.086
8620	6.93	0.63	63.1	7.225	154.1	79.5	1.049	0.068

Outer Diameter: 7.1 mm to 7.55 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8621	7.1	0.8	21.3	14.117	29.8	10.5	2.734	1.336
8622	7.1	0.8	22.9	14.117	33	12.5	2.734	1.122
8623	7.1	0.8	25.3	14.117	37.9	15.5	2.734	0.905
8624	7.1	0.8	28.5	14.117	44.3	19.5	2.734	0.719
8625	7.1	0.8	32.5	14.117	52.4	24.5	2.734	0.573
8626	7.1	0.8	38.1	14.117	63.7	31.5	2.734	0.445
8627	7.1	0.8	44.5	14.117	76.6	39.5	2.734	0.355
8628	7.1	0.8	52.5	14.117	92.7	49.5	2.734	0.283
8629	7.1	0.8	62.9	14.117	113.6	62.5	2.734	0.224
8630	7.1	0.8	76.5	14.117	141	79.5	2.734	0.176
8631	7.3	1	23.2	25.458	29	10.5	6.664	3.261
8632	7.3	1	25.2	25.458	32.1	12.5	6.664	2.74
8633	7.3	1	28.2	25.458	36.7	15.5	6.664	2.209
8634	7.3	1	32.2	25.458	42.9	19.5	6.664	1.756
8635	7.3	1	37.2	25.458	50.6	24.5	6.664	1.398
8636	7.3	1	44.2	25.458	61.5	31.5	6.664	1.087
8637	7.3	1	52.2	25.458	73.9	39.5	6.664	0.867
8638	7.3	1	62.2	25.458	89.4	49.5	6.664	0.692
8639	7.3	1	75.2	25.458	109.5	62.5	6.664	0.548
8640	7.3	1	92.2	25.458	135.8	79.5	6.664	0.431
8641	7.55	1.25	25.5	46.351	29.3	10.5	16.278	7.962
8642	7.55	1.25	28	46.351	32.5	12.5	16.278	6.688
8643	7.55	1.25	31.7	46.351	37.3	15.5	16.278	5.394
8644	7.55	1.25	36.7	46.351	43.7	19.5	16.278	4.287
8645	7.55	1.25	43	46.351	51.8	24.5	16.278	3.412
8646	7.55	1.25	51.7	46.351	63	31.5	16.278	2.654
8647	7.55	1.25	61.7	46.351	75.9	39.5	16.278	2.117
8648	7.55	1.25	74.2	46.351	92	49.5	16.278	1.689
8649	7.55	1.25	90.5	46.351	113	62.5	16.278	1.338
8650	7.55	1.25	111.7	46.351	140.3	79.5	16.278	1.052

Outer Diameter: 8.63 mm to 9 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8651	8.63	0.63	23.4	5.848	44.1	10.5	0.647	0.251
8652	8.63	0.63	24.7	5.848	49.4	12.5	0.647	0.211
8653	8.63	0.63	26.5	5.848	57.1	15.5	0.647	0.17
8654	8.63	0.63	29.1	5.848	67.6	19.5	0.647	0.135
8655	8.63	0.63	32.2	5.848	80.6	24.5	0.647	0.108
8656	8.63	0.63	36.6	5.848	98.8	31.5	0.647	0.084
8657	8.63	0.63	41.7	5.848	119.7	39.5	0.647	0.067
8658	8.63	0.63	48	5.848	145.8	49.5	0.647	0.053
8659	8.63	0.63	56.2	5.848	179.5	62.5	0.647	0.042
8660	8.63	0.63	66.9	5.848	224	79.5	0.647	0.033
8661	8.8	0.8	25	11.496	40	10.5	1.695	0.652
8662	8.8	0.8	26.6	11.496	44.5	12.5	1.695	0.548
8663	8.8	0.8	29	11.496	51.2	15.5	1.695	0.442
8664	8.8	0.8	32.2	11.496	60.1	19.5	1.695	0.351
8665	8.8	0.8	36.2	11.496	71.3	24.5	1.695	0.28
8666	8.8	0.8	41.8	11.496	86.8	31.5	1.695	0.218
8667	8.8	0.8	48.2	11.496	104.7	39.5	1.695	0.173
8668	8.8	0.8	56.2	11.496	127	49.5	1.695	0.138
8669	8.8	0.8	66.6	11.496	156	62.5	1.695	0.11
8670	8.8	0.8	80.2	11.496	193.9	79.5	1.695	0.086
8671	9	1	26.9	21.216	37.6	10.5	4.136	1.593
8672	9	1	28.9	21.216	41.7	12.5	4.136	1.338
8673	9	1	31.9	21.216	47.7	15.5	4.136	1.079
8674	9	1	35.9	21.216	55.8	19.5	4.136	0.858
8675	9	1	40.9	21.216	65.9	24.5	4.136	0.683
8676	9	1	47.9	21.216	80.1	31.5	4.136	0.531
8677	9	1	55.9	21.216	96.2	39.5	4.136	0.423
8678	9	1	65.9	21.216	116.4	49.5	4.136	0.338
8679	9	1	78.9	21.216	142.7	62.5	4.136	0.268
8680	9	1	95.9	21.216	177.1	79.5	4.136	0.21

Outer Diameter: 9.25 mm to 10.8 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8681	9.25	1.25	29.2	38.162	36.4	10.5	10.09	3.889
8682	9.25	1.25	31.7	38.162	40.3	12.5	10.09	3.266
8683	9.25	1.25	35.4	38.162	46.1	15.5	10.09	2.634
8684	9.25	1.25	40.5	38.162	53.9	19.5	10.09	2.094
8685	9.25	1.25	46.7	38.162	63.5	24.5	10.09	1.667
8686	9.25	1.25	55.5	38.162	77.2	31.5	10.09	1.296
8687	9.25	1.25	65.5	38.162	92.7	39.5	10.09	1.034
8688	9.25	1.25	78	38.162	112	49.5	10.09	0.825
8689	9.25	1.25	94.2	38.162	137.2	62.5	10.09	0.653
8690	9.25	1.25	115.5	38.162	170.1	79.5	10.09	0.514
8691	9.6	1.6	32.5	73.634	37	10.5	27.05	10.438
8692	9.6	1.6	35.7	73.634	41	12.5	27.05	8.768
8693	9.6	1.6	40.5	73.634	47.1	15.5	27.05	7.071
8694	9.6	1.6	46.9	73.634	55.2	19.5	27.05	5.621
8695	9.6	1.6	54.9	73.634	65.3	24.5	27.05	4.474
8696	9.6	1.6	66.1	73.634	79.5	31.5	27.05	3.479
8697	9.6	1.6	78.9	73.634	95.7	39.5	27.05	2.775
8698	9.6	1.6	94.9	73.634	115.9	49.5	27.05	2.214
8699	9.6	1.6	115.7	73.634	142.3	62.5	27.05	1.754
8700	9.6	1.6	142.9	73.634	176.7	79.5	27.05	1.379
8701	10.8	0.8	29.4	9.453	54.4	10.5	1.088	0.334
8702	10.8	0.8	31	9.453	60.8	12.5	1.088	0.281
8703	10.8	0.8	33.4	9.453	70.4	15.5	1.088	0.226
8704	10.8	0.8	36.6	9.453	83.1	19.5	1.088	0.18
8705	10.8	0.8	40.6	9.453	99	24.5	1.088	0.143
8706	10.8	0.8	46.2	9.453	121.4	31.5	1.088	0.111
8707	10.8	0.8	52.6	9.453	146.8	39.5	1.088	0.089
8708	10.8	0.8	60.6	9.453	178.6	49.5	1.088	0.071
8709	10.8	0.8	71	9.453	220.1	62.5	1.088	0.056
8710	10.8	0.8	84.6	9.453	274.3	79.5	1.088	0.044

Outer Diameter: 11 mm to 11.6 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8711	11	1	31.3	17.551	49.6	10.5	2.646	0.816
8712	11	1	33.3	17.551	55.1	12.5	2.646	0.685
8713	11	1	36.3	17.551	63.3	15.5	2.646	0.552
8714	11	1	40.3	17.551	74.2	19.5	2.646	0.439
8715	11	1	45.3	17.551	87.9	24.5	2.646	0.35
8716	11	1	52.3	17.551	107.1	31.5	2.646	0.272
8717	11	1	60.3	17.551	129.1	39.5	2.646	0.217
8718	11	1	70.3	17.551	156.5	49.5	2.646	0.173
8719	11	1	83.3	17.551	192.1	62.5	2.646	0.137
8720	11	1	100.3	17.551	238.7	79.5	2.646	0.108
8721	11.25	1.25	33.6	32.309	46.6	10.5	6.468	1.991
8722	11.25	1.25	36.1	32.309	51.6	12.5	6.468	1.672
8723	11.25	1.25	39.8	32.309	59	15.5	6.468	1.349
8724	11.25	1.25	44.9	32.309	69	19.5	6.468	1.072
8725	11.25	1.25	51.1	32.309	81.4	24.5	6.468	0.853
8726	11.25	1.25	59.9	32.309	98.8	31.5	6.468	0.664
8727	11.25	1.25	69.9	32.309	118.7	39.5	6.468	0.529
8728	11.25	1.25	82.4	32.309	143.6	49.5	6.468	0.422
8729	11.25	1.25	98.6	32.309	175.9	62.5	6.468	0.335
8730	11.25	1.25	120	32.309	218.3	79.5	6.468	0.263
8731	11.6	1.6	36.9	61.587	45.2	10.5	17.35	5.344
8732	11.6	1.6	40.1	61.587	50	12.5	17.35	4.489
8733	11.6	1.6	44.9	61.587	57.1	15.5	17.35	3.62
8734	11.6	1.6	51.3	61.587	66.7	19.5	17.35	2.878
8735	11.6	1.6	59.3	61.587	78.6	24.5	17.35	2.29
8736	11.6	1.6	70.5	61.587	95.3	31.5	17.35	1.781
8737	11.6	1.6	83.3	61.587	114.4	39.5	17.35	1.421
8738	11.6	1.6	99.3	61.587	138.3	49.5	17.35	1.134
8739	11.6	1.6	120.1	61.587	169.4	62.5	17.35	0.898
8740	11.6	1.6	147.3	61.587	210	79.5	17.35	0.706

Outer Diameter: 12 mm to 13.75 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8741	12	2	40.6	108.821	45.7	10.5	42.34	13.048
8742	12	2	44.6	108.821	50.7	12.5	42.34	10.96
8743	12	2	50.6	108.821	58.1	15.5	42.34	8.839
8744	12	2	58.6	108.821	68.1	19.5	42.34	7.026
8745	12	2	68.6	108.821	80.5	24.5	42.34	5.592
8746	12	2	82.6	108.821	97.9	31.5	42.34	4.349
8747	12	2	98.6	108.821	117.8	39.5	42.34	3.468
8748	12	2	118.6	108.821	142.6	49.5	42.34	2.768
8749	12	2	144.6	108.821	174.9	62.5	42.34	2.192
8750	12	2	178.6	108.821	217.2	79.5	42.34	1.723
8751	13.5	1	36.8	14.432	67.3	10.5	1.695	0.418
8752	13.5	1	38.8	14.432	75.1	12.5	1.695	0.351
8753	13.5	1	41.8	14.432	86.8	15.5	1.695	0.283
8754	13.5	1	45.8	14.432	102.5	19.5	1.695	0.225
8755	13.5	1	50.8	14.432	122	24.5	1.695	0.179
8756	13.5	1	57.8	14.432	149.3	31.5	1.695	0.139
8757	13.5	1	65.8	14.432	180.5	39.5	1.695	0.111
8758	13.5	1	75.8	14.432	219.6	49.5	1.695	0.089
8759	13.5	1	88.8	14.432	270.5	62.5	1.695	0.07
8760	13.5	1	105.8	14.432	337	79.5	1.695	0.055
8761	13.75	1.25	39.1	26.727	61.3	10.5	4.136	1.019
8762	13.75	1.25	41.6	26.727	68	12.5	4.136	0.856
8763	13.75	1.25	45.3	26.727	78	15.5	4.136	0.691
8764	13.75	1.25	50.4	26.727	91.6	19.5	4.136	0.549
8765	13.75	1.25	56.6	26.727	108.3	24.5	4.136	0.437
8766	13.75	1.25	65.4	26.727	131.9	31.5	4.136	0.34
8767	13.75	1.25	75.4	26.727	158.8	39.5	4.136	0.271
8768	13.75	1.25	87.9	26.727	192.4	49.5	4.136	0.216
8769	13.75	1.25	104.1	26.727	236.1	62.5	4.136	0.171
8770	13.75	1.25	125.4	26.727	293.2	79.5	4.136	0.135

Outer Diameter: 14.1 mm to 15 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8771	14.1	1.6	42.4	52.141	57.4	10.5	11.07	2.736
8772	14.1	1.6	45.6	52.141	63.5	12.5	11.07	2.299
8773	14.1	1.6	50.4	52.141	72.6	15.5	11.07	1.854
8774	14.1	1.6	56.8	52.141	84.7	19.5	11.07	1.473
8775	14.1	1.6	64.8	52.141	99.8	24.5	11.07	1.173
8776	14.1	1.6	76	52.141	121	31.5	11.07	0.912
8777	14.1	1.6	88.8	52.141	145.3	39.5	11.07	0.727
8778	14.1	1.6	104.8	52.141	175.6	49.5	11.07	0.58
8779	14.1	1.6	125.6	52.141	214.9	62.5	11.07	0.46
8780	14.1	1.6	152.8	52.141	266.4	79.5	11.07	0.361
8781	14.5	2	46.1	91.017	55.7	10.5	27.05	6.68
8782	14.5	2	50.1	91.017	61.5	12.5	27.05	5.612
8783	14.5	2	56.1	91.017	70.2	15.5	27.05	4.525
8784	14.5	2	64.1	91.017	81.9	19.5	27.05	3.597
8785	14.5	2	74.1	91.017	96.4	24.5	27.05	2.863
8786	14.5	2	88.1	91.017	116.8	31.5	27.05	2.227
8787	14.5	2	104.1	91.017	140.1	39.5	27.05	1.776
8788	14.5	2	124.1	91.017	169.2	49.5	27.05	1.417
8789	14.5	2	150.1	91.017	207.1	62.5	27.05	1.122
8790	14.5	2	184.1	91.017	256.6	79.5	27.05	0.882
8791	15	2.5	50.7	162.917	56.6	10.5	66.15	16.31
8792	15	2.5	55.7	162.917	62.8	12.5	66.15	13.7
8793	15	2.5	63.2	162.917	72	15.5	66.15	11.048
8794	15	2.5	73.2	162.917	84.2	19.5	66.15	8.782
8795	15	2.5	85.7	162.917	99.5	24.5	66.15	6.99
8796	15	2.5	103.2	162.917	121	31.5	66.15	5.437
8797	15	2.5	123.2	162.917	145.5	39.5	66.15	4.335
8798	15	2.5	148.2	162.917	176.2	49.5	66.15	3.46
8799	15	2.5	180.7	162.917	216	62.5	66.15	2.74
8800	15	2.5	223.2	162.917	268.1	79.5	66.15	2.154

Outer Diameter: 17.25 mm to 18 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8801	17.25	1.25	46.8	21.462	85.8	10.5	2.519	0.486
8802	17.25	1.25	49.3	21.462	95.7	12.5	2.519	0.408
8803	17.25	1.25	53	21.462	110.5	15.5	2.519	0.329
8804	17.25	1.25	58.1	21.462	130.5	19.5	2.519	0.262
8805	17.25	1.25	64.3	21.462	155.2	24.5	2.519	0.208
8806	17.25	1.25	73.1	21.462	190	31.5	2.519	0.162
8807	17.25	1.25	83.1	21.462	229.7	39.5	2.519	0.129
8808	17.25	1.25	95.6	21.462	279.3	49.5	2.519	0.103
8809	17.25	1.25	111.8	21.462	343.7	62.5	2.519	0.082
8810	17.25	1.25	133.1	21.462	428.2	79.5	2.519	0.064
8811	17.6	1.6	50.1	42.123	77.2	10.5	6.77	1.305
8812	17.6	1.6	53.3	42.123	85.6	12.5	6.77	1.096
8813	17.6	1.6	58.1	42.123	98.1	15.5	6.77	0.884
8814	17.6	1.6	64.5	42.123	114.8	19.5	6.77	0.703
8815	17.6	1.6	72.5	42.123	135.7	24.5	6.77	0.559
8816	17.6	1.6	83.7	42.123	165	31.5	6.77	0.435
8817	17.6	1.6	96.5	42.123	198.4	39.5	6.77	0.347
8818	17.6	1.6	112.5	42.123	240.2	49.5	6.77	0.277
8819	17.6	1.6	133.3	42.123	294.6	62.5	6.77	0.219
8820	17.6	1.6	160.5	42.123	365.7	79.5	6.77	0.172
8821	18	2	53.8	75.251	72.2	10.5	16.56	3.185
8822	18	2	57.8	75.251	79.7	12.5	16.56	2.676
8823	18	2	63.8	75.251	91	15.5	16.56	2.158
8824	18	2	71.8	75.251	106	19.5	16.56	1.715
8825	18	2	81.8	75.251	124.8	24.5	16.56	1.365
8826	18	2	95.8	75.251	151.1	31.5	16.56	1.062
8827	18	2	111.8	75.251	181.1	39.5	16.56	0.847
8828	18	2	131.8	75.251	218.7	49.5	16.56	0.676
8829	18	2	157.8	75.251	267.5	62.5	16.56	0.535
8830	18	2	191.8	75.251	331.3	79.5	16.56	0.421

Outer Diameter: 18.5 mm to 22 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8831	18.5	2.5	58.4	133.069	70.3	10.5	40.37	7.777
8832	18.5	2.5	63.4	133.069	77.6	12.5	40.37	6.533
8833	18.5	2.5	70.9	133.069	88.5	15.5	40.37	5.268
8834	18.5	2.5	80.9	133.069	103	19.5	40.37	4.188
8835	18.5	2.5	93.4	133.069	121.2	24.5	40.37	3.333
8836	18.5	2.5	110.9	133.069	146.7	31.5	40.37	2.592
8837	18.5	2.5	130.9	133.069	175.7	39.5	40.37	2.067
8838	18.5	2.5	155.9	133.069	212.1	49.5	40.37	1.65
8839	18.5	2.5	188.4	133.069	259.4	62.5	40.37	1.307
8840	18.5	2.5	230.9	133.069	321.2	79.5	40.37	1.027
8841	21.6	1.6	58.9	34.636	104.3	10.5	4.33	0.668
8842	21.6	1.6	62.1	34.636	116.1	12.5	4.33	0.561
8843	21.6	1.6	66.9	34.636	133.9	15.5	4.33	0.453
8844	21.6	1.6	73.3	34.636	157.5	19.5	4.33	0.36
8845	21.6	1.6	81.3	34.636	187.1	24.5	4.33	0.286
8846	21.6	1.6	92.5	34.636	228.6	31.5	4.33	0.223
8847	21.6	1.6	105.3	34.636	275.9	39.5	4.33	0.178
8848	21.6	1.6	121.3	34.636	335.2	49.5	4.33	0.142
8849	21.6	1.6	142.1	34.636	412.2	62.5	4.33	0.112
8850	21.6	1.6	169.3	34.636	512.9	79.5	4.33	0.088
8851	22	2	62.6	62.252	94.3	10.5	10.58	1.631
8852	22	2	66.6	62.252	104.3	12.5	10.58	1.37
8853	22	2	72.6	62.252	119.4	15.5	10.58	1.105
8854	22	2	80.6	62.252	139.4	19.5	10.58	0.878
8855	22	2	90.6	62.252	164.5	24.5	10.58	0.699
8856	22	2	104.6	62.252	199.6	31.5	10.58	0.544
8857	22	2	120.6	62.252	239.8	39.5	10.58	0.434
8858	22	2	140.6	62.252	289.9	49.5	10.58	0.346
8859	22	2	166.6	62.252	355.2	62.5	10.58	0.274
8860	22	2	200.6	62.252	440.5	79.5	10.58	0.215

Outer Diameter: 22.5 mm to 27.5 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8861	22.5	2.5	67.2	112.659	89	10.5	25.87	3.982
8862	22.5	2.5	72.2	112.659	98.1	12.5	25.87	3.345
8863	22.5	2.5	79.7	112.659	111.9	15.5	25.87	2.697
8864	22.5	2.5	89.7	112.659	130.2	19.5	25.87	2.144
8865	22.5	2.5	102.2	112.659	153.1	24.5	25.87	1.707
8866	22.5	2.5	119.7	112.659	185.1	31.5	25.87	1.327
8867	22.5	2.5	139.7	112.659	221.7	39.5	25.87	1.059
8868	22.5	2.5	164.7	112.659	267.5	49.5	25.87	0.845
8869	22.5	2.5	197.2	112.659	326.9	62.5	25.87	0.669
8870	22.5	2.5	239.7	112.659	404.7	79.5	25.87	0.526
8871	27	2	73.6	51.187	126.8	10.5	6.772	0.835
8872	27	2	77.6	51.187	140.9	12.5	6.772	0.701
8873	27	2	83.6	51.187	162.1	15.5	6.772	0.566
8874	27	2	91.6	51.187	190.4	19.5	6.772	0.45
8875	27	2	101.6	51.187	225.7	24.5	6.772	0.358
8876	27	2	115.6	51.187	275.2	31.5	6.772	0.278
8877	27	2	131.6	51.187	331.7	39.5	6.772	0.222
8878	27	2	151.6	51.187	402.4	49.5	6.772	0.177
8879	27	2	177.6	51.187	494.2	62.5	6.772	0.14
8880	27	2	211.6	51.187	614.3	79.5	6.772	0.11
8881	27.5	2.5	78.2	93.197	115.8	10.5	16.562	2.039
8882	27.5	2.5	83.2	93.197	128	12.5	16.562	1.713
8883	27.5	2.5	90.7	93.197	146.2	15.5	16.562	1.381
8884	27.5	2.5	100.7	93.197	170.5	19.5	16.562	1.098
8885	27.5	2.5	113.2	93.197	200.9	24.5	16.562	0.874
8886	27.5	2.5	130.7	93.197	243.5	31.5	16.562	0.68
8887	27.5	2.5	150.7	93.197	292.1	39.5	16.562	0.542
8888	27.5	2.5	175.7	93.197	352.9	49.5	16.562	0.432
8889	27.5	2.5	208.2	93.197	432	62.5	16.562	0.343
8890	27.5	2.5	250.7	93.197	535.3	79.5	16.562	0.269

Outer Diameter: 34.5 mm

Product Code	Outer Diameter (mm)	Wire Diameter (mm)	Custom length (mm)	Allowable load (N)	Length at allowable load (mm)	Total Coils	Initial tension (N)	Spring constant (N/mm)
8891	34.5	2.5	93.6	74.837	160.2	10.5	10.094	0.972
8892	34.5	2.5	98.7	74.837	178	12.5	10.094	0.817
8893	34.5	2.5	106.1	74.837	204.4	15.5	10.094	0.659
8894	34.5	2.5	116.1	74.837	239.8	19.5	10.094	0.524
8895	34.5	2.5	128.6	74.837	284	24.5	10.094	0.417
8896	34.5	2.5	146.1	74.837	345.9	31.5	10.094	0.324
8897	34.5	2.5	166.1	74.837	416.7	39.5	10.094	0.258
8898	34.5	2.5	191.1	74.837	505.1	49.5	10.094	0.206
8899	34.5	2.5	223.6	74.837	620.1	62.5	10.094	0.163
8900	34.5	2.5	266.1	74.837	770.3	79.5	10.094	0.128

Development story

Super springs are the one of the best-selling standard springs that have been standardized ahead of the springs for which made-to-order was common in the past.