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Extension spring with turnable bolt

Extension springs with normal loops should not be used for up to more than 60% of the permitted load, as the loop of the spring is weaker than the rest of the spring. To be able to use the spring to its maximum without running the risk of breaking loops, you can use either the SF-DFX series (see previous pages) or this series of extension springs with turnable tapered screws, which can be mounted directly in a threaded bore or fitted with an end mounting.

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See "full-screen" models of the springs and download a PDF file of the designed compression, tension or torsion spring!

Lesjöfors configurator for compression, tension and torsion springs allows you to design a spring based on your demands. Our CAD configurator stretches from wire diameter 0,1mm up to 15mm.

Click for information about 3D CAD!

1. Choose file format

2. Choose item in the table

3. Save file

Cat.no Dt De L0 c 3D CAD
6459 3 18 95 11.4
6460 3 18 125 7.8
6481 3,5 22 105 11.8
6482 3,5 22 135 8.3
6500 4 24 115 15.9
6501 4 24 145 11.6
6502 4 24 175 9.2
6503 4 24 205 7.6
6506 4 30 115 7.2
6519 5 30 170 17
6520 5 30 200 13.6
6521 5 30 230 11.3
6522 5 30 260 9.7
6523 5 30 290 8.5
6524 5 35 140 13.1
6525 5 35 170 9.8
6526 5 35 200 7.9
6530 5 40 140 8.3
6538 6 36 220 18.5
6539 6 36 250 15.5
6540 6 36 280 13.4
6541 6 36 310 11.8
6542 6 42 160 17.2
6543 6 42 190 13.2
6544 6 42 220 10.7
6545 6 42 250 9
6546 6 42 280 7.8
6548 6 50 160 9.4
6549 6 50 190 7.2