Spring , Iran

A leaf spring is a mechanical energy-storing component with a multi-layer structure. These springs are typically manufactured from carbon-silicon steel per SAE 5160 or 9254 standards. The overall spring length varies from 800 to 1800 mm depending on the application. The number of leaves can range from 3 to 15, with each leafs thickness between 6 and 15 mm. The material yield strength is typically over 1200 MPa. They undergo hot forming followed by quenching and tempering processes. The final surface hardness after heat treatment is between 40 and 50 Rockwell C. The static load capacity for a typical commercial vehicle spring ranges from 2000 to 5000 kgf. This capacity depends on geometry and the number of leaves.

The leaf spring structure consists of a main leaf and several progressively shorter graduated leaves. All leaves are clamped together by a central bolt U-bolt and steel bands. The spring is mounted on a shackle pin at the center. The ends are designed as an eye or with a rubber bushing for connection. Graphite or polyethylene lubricants are used to reduce inter-leaf friction. Fatigue testing under alternating load is performed according to JIS B 2704 standard. These springs must endure over 200,000 full load cycles without cracking. Their primary application is in the suspension systems of heavy and commercial vehicles.You can order and buy Spring from Iran by contacting us through whatsaap and email.
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