Description

Overview

Flanged inner brass bush 38mm provides a durable bearing surface between the brake camshaft and housing in heavy trailer axles. This flanged inner bush supports smooth rotation under load and helps maintain consistent brake response. Additionally, it gives workshops a straightforward service option when rebuilding S cam brake hardware.

Features

• Flanged inner bush 38mm helps locate the camshaft axially and maintains correct brake shoe movement.
• Brass bearing surface works against the camshaft while the steel outer shell supports secure press fit in the spider.
• Additionally, the 40mm length offers stable support along the shaft to reduce localised wear.
• Furthermore, the bush design suits 1 1/2 inch brake camshafts used on many heavy trailer axles.

Specifications and Materials

The flanged inner brass bush 38mm has a nominal inside diameter of 38mm to suit a 1 1/2 inch camshaft and an outside diameter of 51mm. Overall length is 40mm, with an integral flange that supports axial location against the brake spider or bracket. The inner bearing surface uses a brass alloy to provide low friction sliding contact against the steel camshaft, while the outer shell uses steel for strength in the housing. Part number: FB2229. For more background on plain bush bearing materials and lubrication, refer to this manufacturer technical guide

Compatibility and Fitment

This flanged inner bush suits S cam brake shafts with a 1 1/2 inch diameter where the housing bore matches the 51mm outside diameter and the assembly accepts a 40mm long bush with flange. In addition, it works best when installed as a matched pair with the correct outer bush and hardware so the camshaft runs true and the brake shoes load evenly.

Compliance and Safety

Correctly supported camshafts help the brake system deliver predictable stopping performance, so replacing worn bushes is an important maintenance task. Always chock wheels securely, isolate the trailer and follow workshop procedures before working on any foundation brake components. Moreover, technicians should inspect the camshaft journal for scoring and ensure the new bush presses in square without damaging the housing.

Trailer Applications

Workshops typically use this flanged inner bush in drum brake assemblies on semi trailers, dog trailers, dollies and other heavy combination vehicles that run S cam brakes. For example, it can form part of a complete brake overhaul where chambers, slack adjusters and camshaft kits are renewed at the same time. Consequently, fitting a new bush along with fresh seals and grease can extend service intervals and reduce unplanned downtime.

Cross-reference and Suitability

No additional cross-reference part numbers are supplied for this flanged inner bush, so you should always confirm dimensions against the removed component before ordering. Similarly, checking the camshaft diameter and housing bore helps ensure the bush will press in correctly and support the shaft with minimal clearance.

Why Choose ICS Trailers

ICS Trailers focuses on heavy trailer parts, so you get components selected to suit real-world Australian fleet conditions. In addition, our team understands foundation brake service work, which helps you match bushes, seals and hardware to your specific axle and camshaft setup. Browse our full range of Foundation Brakes in the Foundation Brakes category at ICS Trailers