Tension Springs - Extra Light Load / Light Load Type [RoHS Compliant]

■Product comparison information
♢ Economy series tension springs are manufactured overseas, resulting in significant cost reductions.
♢ Economy series tension springs are standardized to maintain the maximum load constantly to the same diameter. Initial tension and spring constant are for reference only.
♢ E-GAU□ is a stainless steel spring, but it is magnetic. Please be careful.

■Specification Comparison with MISUMI’s Similar Products

Item	MISUMI's Similar Products AUA	Economy Series E-GAUA
Service Life	1 million times	700,000 times or more
Manufactured	In Japan	Outside of Japan
RoHS10	Compliant	Compliant

 

Free Length L
D= 18 or less ±1.0
D= 18 or more ±1.5

Type	[M] Material
E-GAWA	SWP-B
E-GAWY
E-GAUA	SUS304-WPB
E-GAUY

■Extra Light Load

Part Number			Wire Dia. d mm	Dynamic Load		Initial Tension N (Reference Value)	Spring Constant N/mm (Reference Value)
Type	D	L		Max. Deflection Fmax. mm	Max. Load N
E－GAWA (SWP-B) E－GAUA (SUS304-WPB)	2	*10	0.20	6.7	0.69	0.13	0.083
	3	10	0.25	10.4	1.27	0.15	0.110
		15		23.0			0.049
		20		35.9			0.031
		25		47.9			0.024
	4	15	0.35	14.6	2.26	0.25	0.140
		20		24.1			0.083
		25		32.5			0.062
		30		42.7			0.047
		(35)		51.2			0.039
		40		60.3			0.033
	5	15	0.45	8.2	3.24	0.49	0.330
		20		15.5			0.180
		25		21.5			0.130
		30		29.4			0.093
		35		35.0			0.078
		40		43.0			0.064
		(50)		56.0			0.049
	6	20	0.55	16.2	6.08	0.64	0.340
		25		25.2			0.220
		30		34.7			0.160
		35		42.7			0.130
		40		50.4			0.110
		45		61.6			0.088
		(50)		69.3			0.079
		60		85.3			0.064
	8	25	0.7	18.1	8.53	1.08	0.410
		30		27.1			0.280
		35		36.2			0.210
		40		44.7			0.170
		(45)		54.2			0.140

[ ! ] () can only be selected for E-GAWA.
[ ! ] * can only be selected for E-GAUA.
[ ! ] Load {kgf} = Load N × 0.101972
[!] Initial tension, spring constant, and number of coils are for reference only. There may be some variations depending on the lot.
" ! " How to Determine the Number of Winding (Reference Value): Total Coils = [L - 2(D - d)]/d
" ! " How to Determine the Active Number of Winding (Reference Value): Number of active coils = total coils - 2

■Light Load Type

Part Number			Wire Dia. d mm	Dynamic Load		Initial Tension N (Reference Value)	Spring Constant N/mm (Reference Value)
Type	D	L		Max. Deflection Fmax. mm	Max. Load N
E－GAWY (SWP-B) E－GAUY (SUS304-WPB)	2	*10	0.25	5.7	1.86	0.34	0.27
	3	10	0.30	8.7	2.25	0.29	0.23
		15		16.6			0.12
		20		25.0			0.08
		25		33.3			0.06
	4	15	0.40	10.0	3.24	0.59	0.26
		20		16.8			0.16
		25		22.5			0.12
		30		28.4			0.09
		35		33.7			0.08
		40		38.5			0.07
	5	15	0.50	6.8	4.22	0.88	0.49
		20		11.7			0.28
		25		17.0			0.20
		30		21.2			0.16
		40		34.0			0.10
		45		37.7			0.09
		(50)		42.5			0.08
	6	20	0.60	14.0	8.14	1.27	0.49
		25		21.2			0.32
		30		28.0			0.25
		35		35.0			0.20
		40		41.1			0.17
		45		50.0			0.14
	8	25	0.80	15.1	12.75	2.35	0.69
		30		21.2			0.49
		35		26.5			0.39
		40		33.1			0.31
		(50)		46.0			0.23
		(70)		66.2			0.16
	10	(45)	1.00	23.9	15.00	3.73	0.47
		(70)		44.2			0.26
		(80)		52.2			0.22
	12	*40	1.20	27.8	31.37	5.39	0.93
		*45		35.3			0.74
		(50)		42.0			0.62
		(60)		55.2			0.47
		(75)		77.9			0.33
		(100)		106.0			0.25
	14	(45)	1.50	21.0	38.24	8.43	1.42
		(80)		58.3			0.51
	16	(70)	1.60	40.8	43.15	9.12	0.83
		(150)		115.6			0.29
	20	(80)	2.00	53.6	78.45	12.75	1.23
		(150)		139.5			0.47
		(175)		167.5			0.39

[ ! ] () can only be selected for E-GAWY.
[ ! ] * can only be selected for E-GAUY.
[ ! ] Load {kgf} = Load N × 0.101972
[!] Initial tension, spring constant, and number of coils are for reference only. There may be some variations depending on the lot.
" ! " How to Determine the Number of Winding (Reference Value): Total Coils = [L - 2(D - d)]/d
" ! " How to Determine the Active Number of Winding (Reference Value): Number of active coils = total coils - 2

■Max. Load N

O.D.	E-GAWA	E-GAWY	E-GAWU	E-GAWS	E-GAWF	E-GAWT	E-GWAWT
D	E-GAUA	E-GAUY	E-GAUU	E-GAUS		E-GAUT
2	0.69	1.86	2.45
3	1.27	2.25	3.33	4.41	6.47	8.80
4	2.26	3.24	4.81	6.37	8.43	11.10
5	3.24	4.22	6.37	8.53	14.71	20.79	20.79
6	6.08	8.14	12.94	17.26	23.54	33.15	33.15
8	8.53	12.75	18.63	24.52	31.38	41.19	41.19
10		15.00	23.24	30.99	49.03	77.47	77.47
12		31.37	47.7	62.76		120.62	120.62
14		38.24		74.53		154.95	154.95
16		43.15
20		78.45		150.04
For the product page, see here →	Extra Light Load / Light Load Type		Light Medium Load / Medium Load / Medium Heavy Load Type			Heavy Load Type	Heavy Load Double Hook Type

[Cautions for Use]
▶Operating Temperature
SWP-B:: Ambient Temperature (0 to 40°C)
Stainless Steel:: ₋10 to 100°C
* Load value attenuates when tension springs are used in temperature higher than above, although it depends on other conditions.
* If this product is to be used in environments with extreme temperature difference or humidity such as outdoors, stainless steel is recommended.

▶Standard Usage Count: Approximately 700,000 times
* The above numbers are for reference only. The usage count may vary depending on the direction of tension, operating temperature/environment, and deformation amount.
 It is recommended to use the springs within 70 % of allowable deflection F max.(mm).

▶Others
· Use the springs within the range of the allowable deflection F max.(mm). Using at higher than the allowable deflection values may cause deformation or failure.
  Also, do not extend tension springs more than its allowable deflection during the installation.
· Stainless Steel Spring is magnetic. Please be careful.

Please use this as a reference for combining extension spring and post for tension spring.
The following is a reference for combinations. Please check the strength of post for tension spring depending on the usage conditions.
　◎ = Recommended
　○= Available but difficult to pass through
× = Unavailable