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Extension Springs

CROSSOVER LOOPS OR MACHINE LOOPS
CLOSE WOUND
UNIFORM BODY DIAMETER

MATERIAL:
302 Stainless Steel, Spring Temper

Supplied right- or left-hand wound at our option.
Loop orientation may vary.

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Product NameCatalog PDFExtension LengthExtension Load (lb)Free Length (L)MaterialOuter Dia (O.D.)Spring Rate (lb.in.)Wire DiameterStockPriceQtyAdd to Cart
S78ESY-018034062 81010089.pdf0.75 Inch7.47 lb0.62 Inch302 Stainless Steel0.18 Inch51.5 lb./in.0.034 Inch Call Us
$5.58 As low as $0.00
S78ESY-024026075 81010089.pdf1.29 Inch2.75 lb0.75 Inch302 Stainless Steel0.24 Inch4.7 lb./in.0.026 Inch 14
$5.47 As low as $0.00
S78ESY-024026100 81010089.pdf1.97 Inch2.75 lb1 Inch302 Stainless Steel0.24 Inch2.5 lb./in.0.026 Inch 77
$5.47 As low as $0.00
S78ESY-024026112 81010089.pdf2.31 Inch2.75 lb1.12 Inch302 Stainless Steel0.24 Inch2.1 lb./in.0.026 Inch 75
$5.47 As low as $0.00
S78ESY-024026125 81010089.pdf2.64 Inch2.75 lb1.25 Inch302 Stainless Steel0.24 Inch1.8 lb./in.0.026 Inch 58
$5.47 As low as $0.00
S78ESY-024029075 81010089.pdf1.17 Inch3.75 lb0.75 Inch302 Stainless Steel0.24 Inch8.2 lb./in.0.029 Inch 216
$5.47 As low as $0.00
S78ESY-024029125 81010089.pdf2.32 Inch3.75 lb1.25 Inch302 Stainless Steel0.24 Inch3.2 lb./in.0.029 Inch 60
$5.47 As low as $0.00
S78ESY-024031075 81010089.pdf1.11 Inch4.41 lb0.75 Inch302 Stainless Steel0.24 Inch11.5 lb./in.0.031 Inch 25
$5.47 As low as $0.00
S78ESY-024031125 81010089.pdf2.14 Inch4.41 lb1.25 Inch302 Stainless Steel0.24 Inch4.4 lb./in.0.031 Inch Call Us
$5.47 As low as $0.00
S78ESY-024031150 81010089.pdf2.64 Inch4.41 lb1.5 Inch302 Stainless Steel0.24 Inch3.5 lb./in.0.031 Inch 50
$5.47 As low as $0.00
S78ESY-024034075 81010089.pdf1.04 Inch5.83 lb0.75 Inch302 Stainless Steel0.24 Inch18.4 lb./in.0.034 Inch 50
$5.58 As low as $0.00
S78ESY-024034125 81010089.pdf1.96 Inch5.83 lb1.25 Inch302 Stainless Steel0.24 Inch7.4 lb./in.0.034 Inch 72
$5.58 As low as $0.00
S78ESY-036031100 81010089.pdf2.02 Inch3.07 lb1 Inch302 Stainless Steel0.36 Inch2.7 lb./in.0.031 Inch 45
$5.36 As low as $0.00
S78ESY-036031150 81010089.pdf3.81 Inch3.07 lb1.5 Inch302 Stainless Steel0.36 Inch1.2 lb./in.0.031 Inch 29
$5.36 As low as $0.00
S78ESY-036037100 81010089.pdf1.68 Inch4.91 lb1 Inch302 Stainless Steel0.36 Inch6.6 lb./in.0.037 Inch 8
$5.36 As low as $0.00
S78ESY-036037150 81010089.pdf3.06 Inch4.91 lb1.5 Inch302 Stainless Steel0.36 Inch2.8 lb./in.0.037 Inch 101
$5.36 As low as $0.00
S78ESY-036045125 81010089.pdf1.93 Inch8.5 lb1.25 Inch302 Stainless Steel0.36 Inch11.3 lb./in.0.045 Inch 27
$5.36 As low as $0.00
S78ESY-036045200 81010089.pdf3.49 Inch8.5 lb2 Inch302 Stainless Steel0.36 Inch5.2 lb./in.0.045 Inch 11
$5.69 As low as $0.00
S78ESY-036055125 81010089.pdf1.66 Inch14.66 lb1.25 Inch302 Stainless Steel0.36 Inch32.2 lb./in.0.055 Inch Call Us
$5.89 As low as $0.00
S78ESY-036055200 81010089.pdf2.87 Inch14.66 lb2 Inch302 Stainless Steel0.36 Inch15.2 lb./in.0.055 Inch 88
$6.13 As low as $0.00
S78ESY-050037125 81010089.pdf2.65 Inch3.67 lb1.25 Inch302 Stainless Steel0.5 Inch2.3 lb./in.0.037 Inch 57
$5.89 As low as $0.00
S78ESY-050037200 81010089.pdf6.12 Inch3.67 lb2 Inch302 Stainless Steel0.5 Inch0.8 lb./in.0.037 Inch Call Us
$6.22 As low as $0.00
S78ESY-050055250 81010089.pdf4.82 Inch10.91 lb2.5 Inch302 Stainless Steel0.5 Inch4.2 lb./in.0.055 Inch Call Us
$6.44 As low as $0.00
S78ESY-065055300 81010089.pdf7.83 Inch8.41 lb3 Inch302 Stainless Steel0.65 Inch1.6 lb./in.0.055 Inch 65
$7.33 As low as $0.00
S78ESY-075063400 81010089.pdf10.84 Inch10.66 lb4 Inch302 Stainless Steel0.75 Inch1.4 lb./in.0.063 Inch 33
$9.89 As low as $0.00
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Items 26-50 of 119

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Extension Length
  1. 0.46 Inch 1 item
  2. 0.6 Inch 1 item
  3. 0.68 Inch 1 item
  4. 0.73 Inch 1 item
  5. 0.75 Inch 2 items
  6. 0.79 Inch 1 item
  7. 0.82 Inch 1 item
  8. 0.84 Inch 1 item
  9. 0.95 Inch 1 item
  10. 0.98 Inch 1 item
  11. 1.04 Inch 1 item
  12. 1.05 Inch 1 item
  13. 1.08 Inch 1 item
  14. 1.11 Inch 1 item
  15. 1.12 Inch 1 item
  16. 1.17 Inch 1 item
  17. 1.29 Inch 1 item
  18. 1.31 Inch 1 item
  19. 1.34 Inch 1 item
  20. 1.42 Inch 1 item
  21. 1.6 Inch 1 item
  22. 1.61 Inch 1 item
  23. 1.66 Inch 1 item
  24. 1.68 Inch 1 item
  25. 1.72 Inch 1 item
  26. 1.84 Inch 1 item
  27. 1.93 Inch 1 item
  28. 1.96 Inch 1 item
  29. 1.97 Inch 1 item
  30. 2 Inch 1 item
  31. 2.01 Inch 1 item
  32. 2.02 Inch 1 item
  33. 2.14 Inch 1 item
  34. 2.31 Inch 2 items
  35. 2.32 Inch 1 item
  36. 2.43 Inch 1 item
  37. 2.57 Inch 1 item
  38. 2.64 Inch 2 items
  39. 2.65 Inch 1 item
  40. 2.87 Inch 1 item
  41. 3.06 Inch 1 item
  42. 3.49 Inch 1 item
  43. 3.81 Inch 1 item
  44. 4.71 Inch 1 item
  45. 4.82 Inch 1 item
  46. 6.12 Inch 1 item
  47. 7.83 Inch 1 item
  48. 10.84 Inch 1 item
  49. 15.26 Inch 1 item
Extension Load (lb)
  1. 0.37 lb 3 items
  2. 0.5 lb 2 items
  3. 0.83 lb 2 items
  4. 0.96 lb 2 items
  5. 1.33 lb 3 items
  6. 1.83 lb 2 items
  7. 2.17 lb 3 items
  8. 2.5 lb 3 items
  9. 2.75 lb 4 items
  10. 3.07 lb 2 items
  11. 3.5 lb 2 items
  12. 3.67 lb 2 items
  13. 3.75 lb 2 items
  14. 4.41 lb 3 items
  15. 4.91 lb 2 items
  16. 5.66 lb 3 items
  17. 5.83 lb 2 items
  18. 7.47 lb 1 item
  19. 8.41 lb 1 item
  20. 8.5 lb 2 items
  21. 10.66 lb 1 item
  22. 10.91 lb 1 item
  23. 13.08 lb 1 item
  24. 14.66 lb 2 items
  25. 15.33 lb 1 item
Free Length (L)
  1. 0.25 Inch 1 item
  2. 0.38 Inch 3 items
  3. 0.44 Inch 2 items
  4. 0.5 Inch 3 items
  5. 0.62 Inch 2 items
  6. 0.75 Inch 10 items
  7. 0.88 Inch 2 items
  8. 1 Inch 4 items
  9. 1.12 Inch 1 item
  10. 1.25 Inch 12 items
  11. 1.37 Inch 1 item
  12. 1.5 Inch 3 items
  13. 2 Inch 3 items
  14. 2.5 Inch 2 items
  15. 3 Inch 1 item
  16. 4 Inch 1 item
  17. 5 Inch 1 item
Free Length (L)
  1. 9.5 mm 1 item
  2. 12.5 mm 1 item
  3. 15.5 mm 1 item
  4. 17 mm 3 items
  5. 19 mm 3 items
  6. 21 mm 3 items
  7. 22 mm 3 items
  8. 25 mm 10 items
  9. 30 mm 12 items
  10. 35 mm 11 items
  11. 40 mm 6 items
  12. 45 mm 2 items
  13. 50 mm 3 items
  14. 55 mm 1 item
  15. 60 mm 2 items
  16. 70 mm 1 item
  17. 80 mm 1 item
  18. 90 mm 1 item
  19. 100 mm 1 item
  20. 130 mm 1 item
Max. Extension (mm)
  1. 5.71 mm 1 item
  2. 8.43 mm 1 item
  3. 8.95 mm 1 item
  4. 9.19 mm 1 item
  5. 10 mm 1 item
  6. 10.06 mm 1 item
  7. 10.35 mm 1 item
  8. 11.15 mm 1 item
  9. 12.33 mm 1 item
  10. 13.49 mm 1 item
  11. 13.52 mm 1 item
  12. 13.87 mm 1 item
  13. 13.95 mm 1 item
  14. 14.08 mm 1 item
  15. 15.3 mm 1 item
  16. 15.45 mm 1 item
  17. 15.78 mm 1 item
  18. 16.59 mm 1 item
  19. 17.03 mm 1 item
  20. 17.54 mm 1 item
  21. 18.04 mm 1 item
  22. 18.09 mm 1 item
  23. 18.16 mm 1 item
  24. 20.32 mm 1 item
  25. 20.54 mm 1 item
  26. 20.68 mm 1 item
  27. 21.24 mm 1 item
  28. 22.65 mm 1 item
  29. 23.3 mm 1 item
  30. 23.44 mm 1 item
  31. 23.51 mm 1 item
  32. 23.93 mm 1 item
  33. 24.68 mm 1 item
  34. 25.79 mm 1 item
  35. 25.89 mm 1 item
  36. 26.25 mm 1 item
  37. 27.22 mm 1 item
  38. 28.42 mm 1 item
  39. 28.79 mm 1 item
  40. 28.91 mm 1 item
  41. 29.53 mm 1 item
  42. 29.99 mm 1 item
  43. 31.78 mm 1 item
  44. 32.25 mm 1 item
  45. 33.58 mm 1 item
  46. 36.87 mm 1 item
  47. 37.15 mm 1 item
  48. 37.43 mm 1 item
  49. 37.99 mm 1 item
  50. 40.96 mm 1 item
  51. 42.08 mm 1 item
  52. 42.58 mm 1 item
  53. 45.26 mm 1 item
  54. 48.71 mm 1 item
  55. 49.63 mm 1 item
  56. 55.45 mm 1 item
  57. 56.65 mm 1 item
  58. 59.27 mm 1 item
  59. 61.32 mm 1 item
  60. 67.15 mm 1 item
  61. 69.95 mm 1 item
  62. 76.39 mm 1 item
  63. 92.2 mm 1 item
  64. 117.18 mm 1 item
  65. 142.09 mm 1 item
  66. 167.12 mm 1 item
  67. 243.08 mm 1 item
Max Load (N)
  1. 2.04 N 3 items
  2. 4.08 N 5 items
  3. 5.71 N 5 items
  4. 7.33 N 5 items
  5. 13.08 N 5 items
  6. 13.91 N 4 items
  7. 16.33 N 5 items
  8. 20.41 N 5 items
  9. 21.66 N 4 items
  10. 32.65 N 4 items
  11. 44.98 N 4 items
  12. 47.4 N 7 items
  13. 73.51 N 6 items
  14. 81.63 N 5 items
Outer Dia (O.D.)
  1. 0.063 Inch 3 items
  2. 0.094 Inch 6 items
  3. 0.12 Inch 8 items
  4. 0.17 Inch 1 item
  5. 0.18 Inch 8 items
  6. 0.24 Inch 11 items
  7. 0.36 Inch 8 items
  8. 0.5 Inch 3 items
  9. 0.65 Inch 1 item
  10. 0.75 Inch 1 item
  11. 0.85 Inch 1 item
  12. 1 Inch 1 item
Outer Dia. (D)
  1. 2.5 mm 3 items
  2. 3 mm 5 items
  3. 4.5 mm 10 items
  4. 6.3 mm 15 items
  5. 8 mm 4 items
  6. 9.5 mm 13 items
  7. 12.5 mm 10 items
  8. 19 mm 7 items
Spring Rate (lb.in.)
  1. 0.3 lb./in. 1 item
  2. 0.6 lb./in. 1 item
  3. 0.8 lb./in. 1 item
  4. 0.9 lb./in. 2 items
  5. 1 lb./in. 1 item
  6. 1.1 lb./in. 1 item
  7. 1.2 lb./in. 2 items
  8. 1.4 lb./in. 1 item
  9. 1.6 lb./in. 1 item
  10. 1.7 lb./in. 3 items
  11. 1.8 lb./in. 1 item
  12. 2 lb./in. 1 item
  13. 2.1 lb./in. 2 items
  14. 2.3 lb./in. 1 item
  15. 2.5 lb./in. 1 item
  16. 2.7 lb./in. 2 items
  17. 2.8 lb./in. 2 items
  18. 3 lb./in. 1 item
  19. 3.2 lb./in. 2 items
  20. 3.5 lb./in. 1 item
  21. 3.7 lb./in. 2 items
  22. 3.8 lb./in. 1 item
  23. 4.2 lb./in. 2 items
  24. 4.4 lb./in. 1 item
  25. 4.7 lb./in. 1 item
  26. 5.2 lb./in. 1 item
  27. 6.2 lb./in. 1 item
  28. 6.6 lb./in. 1 item
  29. 6.9 lb./in. 1 item
  30. 7.4 lb./in. 1 item
  31. 8.2 lb./in. 1 item
  32. 8.8 lb./in. 1 item
  33. 10.9 lb./in. 1 item
  34. 11.3 lb./in. 1 item
  35. 11.5 lb./in. 1 item
  36. 12.6 lb./in. 1 item
  37. 15.2 lb./in. 1 item
  38. 18.4 lb./in. 1 item
  39. 22.6 lb./in. 1 item
  40. 31.5 lb./in. 1 item
  41. 32.2 lb./in. 1 item
  42. 51.5 lb./in. 1 item
Spring Rate
  1. 0.066 N/mm 1 item
  2. 0.08 N/mm 1 item
  3. 0.087 N/mm 1 item
  4. 0.089 N/mm 1 item
  5. 0.095 N/mm 1 item
  6. 0.097 N/mm 1 item
  7. 0.107 N/mm 1 item
  8. 0.12 N/mm 1 item
  9. 0.121 N/mm 1 item
  10. 0.138 N/mm 1 item
  11. 0.14 N/mm 1 item
  12. 0.152 N/mm 1 item
  13. 0.162 N/mm 1 item
  14. 0.177 N/mm 1 item
  15. 0.179 N/mm 1 item
  16. 0.202 N/mm 1 item
  17. 0.204 N/mm 1 item
  18. 0.206 N/mm 1 item
  19. 0.252 N/mm 1 item
  20. 0.255 N/mm 1 item
  21. 0.257 N/mm 1 item
  22. 0.283 N/mm 1 item
  23. 0.302 N/mm 1 item
  24. 0.33 N/mm 1 item
  25. 0.367 N/mm 1 item
  26. 0.385 N/mm 1 item
  27. 0.406 N/mm 1 item
  28. 0.446 N/mm 1 item
  29. 0.466 N/mm 1 item
  30. 0.477 N/mm 1 item
  31. 0.484 N/mm 1 item
  32. 0.495 N/mm 1 item
  33. 0.519 N/mm 1 item
  34. 0.566 N/mm 1 item
  35. 0.608 N/mm 1 item
  36. 0.635 N/mm 1 item
  37. 0.639 N/mm 1 item
  38. 0.684 N/mm 1 item
  39. 0.77 N/mm 1 item
  40. 0.798 N/mm 1 item
  41. 0.816 N/mm 1 item
  42. 0.818 N/mm 1 item
  43. 0.856 N/mm 1 item
  44. 1.02 N/mm 1 item
  45. 1.025 N/mm 1 item
  46. 1.147 N/mm 1 item
  47. 1.153 N/mm 1 item
  48. 1.205 N/mm 1 item
  49. 1.381 N/mm 1 item
  50. 1.437 N/mm 1 item
  51. 1.523 N/mm 1 item
  52. 1.728 N/mm 1 item
  53. 1.913 N/mm 1 item
  54. 1.927 N/mm 1 item
  55. 2.004 N/mm 1 item
  56. 2.34 N/mm 1 item
  57. 2.567 N/mm 1 item
  58. 2.813 N/mm 1 item
  59. 3.522 N/mm 1 item
  60. 3.903 N/mm 1 item
  61. 4.188 N/mm 1 item
  62. 4.712 N/mm 1 item
  63. 5.01 N/mm 1 item
  64. 6.23 N/mm 1 item
  65. 7.116 N/mm 1 item
  66. 8.24 N/mm 1 item
  67. 12.165 N/mm 1 item
Wire Diameter
  1. 0.008 Inch 3 items
  2. 0.01 Inch 2 items
  3. 0.012 Inch 2 items
  4. 0.013 Inch 2 items
  5. 0.016 Inch 3 items
  6. 0.018 Inch 2 items
  7. 0.02 Inch 3 items
  8. 0.022 Inch 3 items
  9. 0.026 Inch 6 items
  10. 0.029 Inch 2 items
  11. 0.031 Inch 8 items
  12. 0.034 Inch 3 items
  13. 0.037 Inch 4 items
  14. 0.045 Inch 2 items
  15. 0.055 Inch 4 items
  16. 0.063 Inch 1 item
  17. 0.075 Inch 2 items
Wire Diameter
  1. 0.25 mm 3 items
  2. 0.35 mm 5 items
  3. 0.45 mm 5 items
  4. 0.55 mm 5 items
  5. 0.6 mm 5 items
  6. 0.75 mm 9 items
  7. 0.8 mm 5 items
  8. 0.95 mm 4 items
  9. 1.2 mm 8 items
  10. 1.5 mm 5 items
  11. 1.6 mm 13 items

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