An 80 percent reduction in road-induced vibration
Independent tests* show Comfort Ride shock absorber and leaf spring systems reduce energy transmission to otherwise-conventional trailers/fifth wheels by more than 80 percent, over a variety of surfaces. Four major design innovations are behind those results:
- The axles are isolated - the slipper leaf springs attach to a central hanger that isolates each axle, so the two springs are no longer connected. Each spring is free to absorb and dissipate energy.
- The shock absorbers are mounted vertically - patented mounting brackets allow the shocks to be mounted vertically, where they have the leverage to limit up-and-down motion on both compression and rebound. The shock absorbers are angled to provide sway control - because the shocks are angled to the outside, the trailer's weight stays centered over the tires, which helps control sway by limiting lateral suspension travel and sideto- side rocking.
- Fewer moving parts - l O of the 14 moving parts in a conventional trailer suspension have been eliminated; the remaining four are lubricated with longlife bushings.
Note: Comfort Ride shock absorbers and slipper leaf springs can be installed seperately, but when they're installed together, the two components provide the maximum benefit in ride quality.
• At the Navistar Proving Grounds in New Carlisle, IN
Tandem axle shock absorber kits
- 24M50 Shock absorber system for 2-3/8" axle diameters
2450-50 Third axle kit (components for one additional axle) - 24460 Shock absorber system for 3" axle diameters
2460-50 Third axle kit (components for one additional axle) - 470 Shock absorber system for 3½" axle diameters
2470-50 Third axle kit (components for one additional axle)
Tandem axle slipper leaf spring kits
- 2560 Slipper spring system for axles rated up to 5,000 pounds
2560-50 Third axle kit (components for one additional axle) - 2570 Slipper spring system for axles rated up to 7,000 pounds
2570-50 Third axle kit (components for one additional axle) - 2580 Slipper spring system for axles rated up to 8,000 pounds
2580-50 Third axle kit (components for one additional axle)
A smoother, more comfortable ride
Comfort Ride shock absorber and slipper leaf spring systems will significantly reduce the cause of these common suspension-related symptoms:
- Chucking - The truck is rocked forward and aft when the trailer goes over uneven pavement. (dips, frost heaves and the infamous bridge expansion joints).
- Axle roll-up - During braking, the trailer's rear tires are lifted enough to cause a loss in traction (and a rise in the driver's blood pressure).
- Suspension rebound - When a tire goes over an obstacle, the trailer tips sideways. After clearing the obstacle, the leaf springs (and the trailer with them) rebound like a pogo stick.
