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October 2004
Hendrickson Debuts Heavy-duty, Single-leaf Front
Truck Suspension Spring |
WOODRIDGE, Ill. — And then there was one — Hendrickson continues the weight
saving evolution of the front truck suspension spring with the introduction of
the SSR MONOLEAF™.
Pioneering the three-leaf spring in the 1960’s and two-leaf springs in the
1980’s, Hendrickson formed innovative designs to maintain strength and
durability while reducing weight by eliminating leaves. That culminates with the
SSR MONOLEAF, which delivers a front suspension weight savings of some 40 pounds
compared to a traditional two-leaf spring in 12,000-pound capacity arrangements.
Offered in axle-rated capacities of 8,000, 10,000 and 12,000 pounds, SSR
MONOLEAF further enhances weight savings when paired with Hendrickson’s proven
STEERTEK fabricated steer axle — a combination that can trim 70 pounds compared
to a traditional two-leaf spring on a forged I-beam axle.
In addition to providing fleets and owner operators with expanded cargo
capacity, SSR MONOLEAF’s parabolic design delivers an optimal balance of spring
rate, stress and weight for an outstanding ride.
Highly-processed material and sophisticated manufacturing techniques help ensure
long service life, and rubber bushings help reduce maintenance and noise. SSR
MONOLEAF eliminates interleaf friction to improve ride characteristics.
Compared to conventional springs, SSR MONOLEAF spring geometry minimizes shackle
movement, therefore enabling our patent pending shackle-stop technology to
integrate the axle alignment redundancy feature.
With SSR MONOLEAF, Hendrickson continues to pioneer leading-edge spring
technology for the commercial vehicle industry. Designing and manufacturing leaf
springs for heavy-duty transportation applications since 1920, Hendrickson
builds on decades of engineering innovation to improve ride and spring quality,
reliability and performance.
Hendrickson stands as the world’s leading supplier of heavy-duty springs,
producing nearly half of all flat-leaf springs and three-quarters of all
parabolic taper-leaf springs for medium-duty and heavy-duty commercial vehicles.
Combining SSR MONOLEAF with STEERTEK achieves a best-in-class mechanical front
suspension with additional benefits compared to conventional configurations
using common industry forged axles.
STEERTEK helps improve tire life with a box-design axle that provides stiffer
axle resistance to vertical and longitudinal loads. The stiffer axle reduces
dynamic variation in toe and camber providing a more consistent tire contact
pattern.
Its two-piece knuckle assembly allows removal of knuckle without removing the
kingpin. Steering and tie rod arms integrate for increased strength and reduced
weight.
For additional information on SSR MONOLEAF, contact Hendrickson Spring at
519-271-4840.
Hendrickson International is one of the largest global suppliers of truck and
tractor suspensions, trailer suspensions, truck and trailer lift axles, springs
and bumpers to the commercial transportation industry. Headquartered in
Woodridge, Ill., Hendrickson has been meeting the needs of the transportation
industry for more than 90 years. |
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