Description

Overview

Equaliser pin washer spreads clamp load across the suspension joint and gives the pin assembly a broad bearing surface during service. Because the washer carries load under the fastening face, it also helps protect the surrounding suspension hardware from localised wear. Its heavy duty profile suits trailer equaliser and rocker pin hardware where the washer needs to sit firm against the surrounding components.

Features

• 27mm inside diameter for the pin location
• 105mm outside diameter for a broad contact face
• 7mm thickness for heavy duty suspension hardware
• Large flat profile to spread load across the seating face

Specifications and Materials

This equaliser pin washer measures 27mm ID, 105mm OD and 7mm thick. The flat washer profile gives buyers clear dimensions to match before ordering, and the heavy duty format suits mechanical suspension service work where a broad seating surface matters. Part number: SP1223. For general plain washer terminology, see the ISO plain washer standard overview for reference.

Compatibility and Fitment

Match the equaliser pin washer against the washer already fitted, then confirm inside diameter, outside diameter and thickness before ordering. Check that the washer sits correctly over the pin shank and bears cleanly against the mating face so the joint clamps up square. When the old hardware shows wear, compare measurements from the unworn seating area instead of relying on the distorted edge of the removed washer.

Compliance and Safety

Inspect the washer for wear marks, distortion, cracking or fretting whenever the pin assembly is apart. Replace any washer that has thinned, burred or lost a flat seating face, because uneven clamping can let the joint work loose in service. After reassembly, confirm the washer sits flat and does not pinch against adjacent moving parts.

Trailer Applications

Workshops fit this style of washer in mechanical trailer suspension assemblies that use equaliser or rocker pins. It suits rebuilds, pin replacement work and general suspension servicing where a broad heavy duty washer is needed to back up the pin hardware and maintain a stable clamped joint. It also makes sense to check the washer whenever related pins, nuts or bushes are already off the trailer.

Why Choose ICS Trailers

When you are replacing pins, bushes or related suspension hardware, this washer is the small part that is easy to overlook and frustrating to chase later. ICS Trailers stocks mechanical suspension service parts together, so you can order the washer with the rest of the job. Browse Suspension parts at ICS Trailers Suspension for related mechanical suspension hardware.