This single replacement roller rocker spring is designed to suit a 3000Kg 7 Leaf Offset Roller Rocker Setup on Tandem or Tri-Axle Trailers. It is designed to be a Heavy-Duty, Robust, and Reliable replacement trailer part you can trust for the long haul. This type of Load Rating is ideal for Horse Floats, Agricultural Towing, and all manner of Industrial and Work trailers.

This Listing is for a 390mm Small eye to Centre Bolt configuration

In an offset Roller Rocker Spring Set each side is comprised of springs with 2 different off-set measurements
One will measure roughly 300mm from the Small Eye to the Centre Bolt - SRR7OFF300
One Will measure roughly 390mm from the Small Eye to the Centre Bolt - SRR7OFF390

If you are looking for a Roller Rocker Spring Replacement with a CENTRE Spring Bolt See SRR7CB

Tandem Roller Rocker Springs
When installing tandem roller rocker springs it is important to note that the Offset of the centre bolt on each spring influences the orientation and placement of the trailers Axles. In most cases the centre bolt of each spring will face inwards towards the centre rocker arm. This means your trailers axles will sit closer together under the bed of your trailer and is the most common way to build a tandem axle trailer. There are some cases however, where people prefer to take apart the Roller Rocker Springs, and reassemble them so the Offset Bolt is facing the opposite direction - further away from the centre rocker arm. The result of this is that your axles can be installed further apart from one another and is most common in cases where you are installing 16'' inch wheels to ensure they can fit without obstruction or interference.

Specifications
Distance from SMALL eye to Centre Bolt 390mm
Length from Small Eye to Oval Eye 690mm
Width of spring 60mm
Ideal for 14'' Inch Wheels
3000Kg Rating When part of a full set
7 Leaf
Low Impact and Abrasion Resistant
Load Sharing Design
Resistant to Wear and Tear

Advice for Install
Weld the Centre Bracket in to position
Install Centre Rocker Arm to Bracket
Attach Springs to the Centre Arm
Bolt Front and Rear Hangers to the springs
Stretch Front spring as far as it will go and weld on to your trailers chassis
Stretch Rear spring as far as it will go and weld on to your trailers chassis