Fineline Fabrications

4 Leaf 45mm x 8mm x 710mm Eye to Eye Spring - Rated 550kg NFF

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  • Regular price $65.95
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This is a special order item. Excluded from Free Freight. Pick up from Richmond NSW 2753 or please contact us for a freight quote.

4 Leaf 45mm x 8mm Black Shackle Spring - 710mm - Rated 550kg

710mm Shackle Eye to Eye Spring suit single and Tandem Axle Trailers

710mm Shackle Eye to Eye Spring suits single and tandem axle trailers from 900kg to 1800kg. Leaf bolt is located in the centre of the spring.

45mm Shackle eye to eye spring

  • 28 inch (710mm)
  • 45mm x 8mm leaf springs
  • 9/16 inch shackle bolt diameter.
  • Free Camber 120mm
  • Eye to Centre 355mm
  • Hanger Centres 735mm

Enable load sharing by linking the 45mm Shackle through a “rocker” assembly. Load transfers from one axle that is carrying a significant percentage of the weight (crossing kerbs, etc.) to the other axle.

The rear end of the spring is connected to a dumjack whereas the front of the spring is connected to a spring hanger. Shackle plates are used in conjunction with shackle bolts to connected the spring to the dumb jack.

Eye to Eye Shackle Springs are rated as follows:

  • Three leaf - 425kg
  • Four leaf - 550kg
  • Five leaf - 650kg
  • Six leaf - 750kg
  • Eight leaf - 850kg

TIP: Our most common call for help is wrong spring picked for tandem trailers. Tandem trailers usually have offset springs.

Trailers rated between 750kg and 200kg must be braked on one axle.

Install electric brakes on both axles over 2000kg.