Hendrickson Truck Parts Catalog

Bolster Springs

GENUINE PARTS

• Engineering expertise • Outstanding performance • Genuine Hendrickson Parts Hendrickson Bolster Springs* incorporate unique designs and high-grade rubber to boost performance and withstand heavy loads in rugged applications. For aftermarket replacement of the springs, Hendrickson supplies the same genuine components for service purposes as installed in our original suspensions. These components have the same design, construction and performance, which helps ensure high end user satisfaction and peak system performance. Correct setup and regular inspections are key in maintaining optimum bolster spring and suspension operation.

HAULMAAX ® Shown

HAULMAAX Bolster Springs ■ HAULMAAX bolster springs work in

HAULMAAX ® EX Bolster Springs ■ Extra wide bolster

HN ® Bolster Springs ■ Proprietary rubber compounds are used to provide ideal articulation and ride quality. ■ As payload increases, the bolster springs continue to compress until the load springs engage.This produces a secondary system stiffness that provides extra ride stability under loaded conditions. ■ HN bolster springs absorb vertical road inputs as well as fore/ aft shock to deliver superior driver comfort and handling.

**Tie-Bar Design ■ While mandatory for 46,000 and 52,000 lb capacity suspensions, an optional tie-bar version is also available for 40,000 lb capacity suspensions. ■ Provides greater bolster column stiffness. ■ Improves suspension performance even when axles are misaligned. ■ Remains consistent

spring centers and a unique progressive load spring provide exceptional stability for demanding applications such as refuse, concrete mixers and dump. ■ The optimized angle allows bolster springs to carry the majority of

conjunction with the load springs and

shim plates to provide outstanding ride quality in both loaded and unloaded conditions. ■ Load spring shims can be adjusted for different

empty body weights, making HAULMAAX suspensions another ideal choice for trucks being used in varying applications.

the payload and still react to braking and accelerating forces with minimal displacement.

with the ride quality and stability of the original design.

NOTE :* Bolster springs should always be replaced with Hendrickson genuine bolster springs and in pairs per beam. For more informa- tion, refer to Hendrickson Technical Publication Nos. 17730-328 (HAULMAAX EX), 17730‑244 (HAULMAAX) and 17730-227 (HN) available online: www.‌hendrickson-intl.com . ** Tie-bar bolster springs are available for both HAULMAAX EX and HAULMAAX 46K and 52K lb capacities suspensions and offered as an aftermarket option for the HAULMAAX EX and HAULMAAX 40K lb capacity.