Tension Spring - Heavy Load Type [RoHS Comliant]

Brand :
MISUMI
Caution
- This product can be purchased in quantities of 10 pcs. Please enter your order quantity in multiples of 10. * Minimum order quantity (20 pcs. or more)
- Stainless Steel Spring is magnetic.
- If the order quantity is 200 or more, the product may be delivered in excess quantity. Thank you for your understanding.
- The price list on this page is as of March 2024. For the latest price, please click the "Confirm Price" button after confirming the part number.
Product Description
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\RoHS10-compliant products are newly released. / The bulk-purchase may save up to 80% for MISUMI’s similar products.
MISUMI's low-priced new brand [Economy Series] Sequentially expanding product lineup. See "Product Lineup" for the special feature page. Product Lineup
Product Overview
■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
♢ 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 AUT | Economy Series E-GAUT |
| Service Life | 1 million times | 700,000 times or more |
| Manufactured | In Japan | Outside of Japan |
| RoHS10 | Compliant | Compliant |
Dimensional Drawing

Free Length L ±1.0
| Type | [M] Material |
| E-GAWT | SWP-B |
| E-GAUT | SUS304-WPB |
Specification Table
■ Heavy Load Type
[ ! ] () can only be selected for E-GAWT.
[ ! ] 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
| 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-GAWT (SWP-B) E-GAUT (SUS304-WPB) | 3 | 10 | 0.5 | 2.0 | 8.80 | 2.16 | 3.24 |
| 15 | 3.7 | 1.77 | |||||
| 25 | 6.8 | 0.98 | |||||
| 4 | 15 | 0.6 | 4.0 | 11.10 | 2.55 | 2.16 | |
| 20 | 6.4 | 1.37 | |||||
| 5 | 15 | 0.8 | 2.9 | 20.79 | 5.10 | 5.39 | |
| 20 | 4.6 | 3.43 | |||||
| 25 | 6.4 | 2.45 | |||||
| 30 | 8.4 | 1.86 | |||||
| 35 | 10.0 | 1.57 | |||||
| 6 | 20 | 1.0 | 3.7 | 33.15 | 8.60 | 6.57 | |
| 25 | 5.3 | 4.61 | |||||
| 30 | 6.9 | 3.53 | |||||
| 35 | 8.3 | 2.94 | |||||
| 40 | 10.0 | 2.45 | |||||
| 55 | 14.3 | 1.71 | |||||
| 8 | 25 | 1.2 | 5.3 | 41.19 | 9.81 | 5.88 | |
| 30 | 7.3 | 4.31 | |||||
| 35 | 9.1 | 3.43 | |||||
| 40 | 11.9 | 2.65 | |||||
| 50 | 15.5 | 2.06 | |||||
| 60 | 18.8 | 1.67 | |||||
| 10 | 30 | 1.6 | 5.2 | 77.47 | 20.59 | 10.89 | |
| 35 | 6.8 | 8.34 | |||||
| 40 | 8.4 | 6.77 | |||||
| 45 | 10.0 | 5.69 | |||||
| 50 | 11.6 | 4.90 | |||||
| 12 | (40) | 2.0 | 6.6 | 120.62 | 34.30 | 13.04 | |
| (45) | 7.7 | 11.18 | |||||
| (50) | 9.4 | 9.22 | |||||
| 14 | (60) | 2.3 | 10.9 | 154.95 | 45.11 | 19.02 | |
[ ! ] 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 | |||
Note
[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.
▶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.
Combination Table of Tension Spring and Post for Tension Spring
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
[Economy Series]Tension Spring - Heavy Load Type
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
[Economy Series]Tension Spring - Heavy Load Type
| Unit (mm) | ||||
| Type | Tension Spring D Dimension | Posts for Tension Springs D Dim. | Economy Series Post for Tension Spring | |
| Hole | Groove Type | |||
| C-AIPO | C-BSPO | |||
| E-GAWT E-GAUT | 3 | 3 | ◎ | × |
| 4 | 3 | ◎ | × | |
| 4 | ○ | × | ||
| 5 | 4 | ◎ | × | |
| 5 | ◎ | × | ||
| 6 | 4 | ◎ | ◎ | |
| 5 | ◎ | × | ||
| 6 | × | × | ||
| 8 | 5 | ◎ | ◎ | |
| 6 | ◎ | × | ||
| 8 | × | × | ||
| 10 | 6 | ◎ | ◎ | |
| 8 | × | × | ||
| 12 | 8 | × | ◎ | |
| 14 | 8 | × | ◎ | |