9 Leaf 4500Kg Rocker Roller Tandem Trailer Caravan Spring Set. Shot Peened Springs 60x7mm

9 LEAF HEAVY DUTY ROCKER ROLLER TANDEM SPRING SET.
4500KG RATED
SHOT PEENED SPRINGS

All Huntsman Products rocker roller springs are 7mm thick giving on average an extra 500kg pay load per set.  All Huntsmans roller bushes are solid steel and not plastic.  All shackle spring bolts (roller and eye) are high tensile and all greasable.

4X 60MM X 7MM 9 LEAF ROCKER ROLLER SPRINGS (SPRINGS ARE SHOT PEENED FOR EXTRA STRENGTH)
2X FRONT 60MM HANGERS 8MM
2X REAR 60MM HANGERS 8MM
2X CENTRE 50MM HANGERS 8MM
2X PAINTED CENTRE ROCKER ARMS
4X SOLID STEEL 5/8” BUSHES
6X 5/8” GREASABLE SHACKLE PINS AND NYLOC NUTS
2X ¾” GREASABLE CENTRE SHACKLE PINS WITH CASTLE NUTS AND SPLIT PINS

FULL ROCKER ROLLER SET WILL COME ASSEMBLED

On ordering all springs will come assembled to suit 14" wheels & tyres with an 800mm axle centre.  If the requirement is for 15"/16" 1000mm centres then its simply swap the front and rear springs of the same side which opens up the axle centres from 800mm to 1000mm (options in main pictures)

SHOT PEENING
Shot peening is a cold working process used to produce a compressive residual stress layer and modify mechanical properties of metals and composites. It entails impacting a surface with shot with force sufficient to create plastic deformation. Shot peening is often called for in aircraft repairs to relieve tensile stresses built up in the grinding process and replace them with beneficial compressive stresses