helper spring leaf

Specification: 16*90
Material: 60Si2Mn
The leaf spring WG9531520164 consists of two parts, a main spring and an auxiliary spring, wherein the main spring includes seven leaves, and the auxiliary spring includes three leaves.
The first leaf of the main spring has two spring eyes, with a dimension of Ø40.
A main spring assembly has a camber of 100 mm, while an auxiliary spring assembly has a camber of 120 mm.
This leaf spring WG9531520164 has a theoretical total weight of 132.32 kg, wherein the theoretical total weight of the main spring is 96.36 kg, while the theoretical total weight of the auxiliary spring is 33.42 kg.
Process for auxiliary spring: the first leaf is pressed with reverse grooves without rib formation, and the second leaf and the third leaf are pressed with reverse grooves with rib formation.
WG9531520164 is specially designed for heavy loads, and is suitable for heavy-load vehicle models such as tractors and dump trucks.
With the main-auxiliary spring structure, only the main spring works during no-load, the main spring and the auxiliary spring act together after full-load, and thus gradient stiffness is achieved, and the comfortableness is improved.
The hybrid process of “pressing reverse grooves with rib formation/without rib formation” is adopted to manufacture the auxiliary spring, so that stress concentration is reduced, and the service life is extended.
With the specification of 16*90, the bending resistance is high, and thus the leaf spring can adapt to poor road conditions.
The main spring and the auxiliary spring can be replaced separately to lower the maintenance cost; and spacers are standardized, thus being capable of matched rapidly during repair.
In one word, the leaf spring WG9531520164 is applicable to rear axle suspension systems of heavy trucks including HOWO and SITRAK, especially to working conditions such as long-distance heavy loads and construction site transportation.