The Axis Pin of 13T Suspension Balance Beam

The Axis Pin of Suspension Balance Beam (also known as Equalizer Pin) is a critical hinge component for heavy-duty semi-trailer mechanical suspension systems. It is designed to pivotally connect the suspension balance beam with hanger brackets and leaf spring assemblies, bearing heavy shear loads and cyclic impact forces during trailer operation.

Manufactured from high-strength alloy steel with integral quenching and tempering heat treatment, this pin delivers excellent shear resistance, impact toughness and wear resistance. It features a built-in grease hole for regular lubrication, which effectively reduces friction between the pin and copper bushing, lowers wear rate and extends the service life of the entire suspension assembly. Finished with blue anti-corrosion coating, it adapts well to muddy, wet and dusty working conditions. It is a standard OEM replacement spare part for multi-axle trailer suspension.

Product Features

• High-Strength Alloy Steel Material – Made of premium alloy steel with quenching & tempering treatment, high shear strength and outstanding impact resistance to withstand heavy vibration and dynamic loads.
• Grease Hole Lubrication Design – Integrated lubrication hole for convenient grease maintenance, reduces friction between pin and copper bearing, and minimizes wear during long-term operation.
• Precision Machined Surface – Strict dimensional tolerance control for outer diameter and bore, perfect fit with balance beam and bushing, ensuring smooth pivoting movement.
• Blue Anti-Corrosion Coating – Blue painted surface finish effectively prevents rust and corrosion, suitable for harsh outdoor and heavy-duty working environments.
• Complete Assembly Supply – Supplied with matching hex nut and washer for direct installation, saving procurement and assembly time.
• Strict Quality Control – Each batch undergoes shear strength test, hardness inspection and dimensional verification to guarantee reliable performance for long-haul heavy transport.
• Wide Compatibility & Customization – Compatible with mainstream multi-axle semi-trailer suspension models; OEM customization according to drawings or samples is available.