Description

Overview

This camshaft bush spider end supports S-cam shafts in heavy vehicle foundation brakes and keeps brake shoe movement consistent. It suits Fruehauf Propar inner and outer camshaft positions where stable support is critical. The compact 22mm length and matched bore and outer diameters make this camshaft bush spider end a direct-fit option for many trailer brake setups. As a result, it helps workshops complete routine brake overhauls with less guesswork.

Features

• Supports S-cam shafts at the spider end to maintain correct brake geometry
• 22mm length with 41mm ID and 51mm OD for matched hardware fitment
• Suits Fruehauf Propar inner and outer camshaft locations on heavy trailers
• Compact bushing design that fits common foundation brake service procedures

Specifications and Materials

This camshaft bush spider end uses a durable bushing-grade construction suitable for repeated brake applications in heavy transport service. Key dimensions are 22mm length, 41mm internal diameter and 51mm external diameter. These sizes allow the bush to locate the S-cam shaft firmly while still permitting smooth rotation under load. Part number: FB2203.

For background on how S-cam foundation brakes work and why correct bushing support matters, see this foundation brake overview from a transport authority which explains the relationship between camshafts, shoes and brake drums.

Compatibility and Fitment

This camshaft bush spider end suits Fruehauf Propar inner and outer camshaft positions that use a 41mm shaft and 51mm housing bore. Always confirm the existing bush dimensions and camshaft type before ordering, then compare them to these values during service. This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown. Some changes in installation may be required: 28-1237, AXA0413-900, BP2203, FL28.1237, TMP5860, WT2203.

Compliance and Safety

Correct S-cam support from a matched camshaft bush spider end helps keep brake timing even across each axle. This consistency supports compliance with heavy vehicle braking performance requirements and reduces the risk of uneven braking. Additionally, technicians should inspect S-cam bushes for wear, elongation and contamination during every brake service. When a bush shows excessive play, scoring or heat damage, replace it and follow the axle or vehicle manufacturer’s workshop procedures.

Trailer Applications

Workshops typically use this camshaft bush spider end on semi-trailers, dog trailers and other heavy combinations running Fruehauf Propar axles with S-cam drum brakes. It can form part of a wider brake overhaul kit that includes new camshafts, seals and hardware. Moreover, matching the bush to the specified axle family helps extend lining life and reduce uneven shoe wear. In turn, correctly supported camshafts help trailers track straight and brake predictably under load.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

These cross-reference numbers help match catalogue listings and workshop records; however, always confirm sizes and camshaft style on the vehicle before final installation.

Why Choose ICS Trailers

ICS Trailers focuses on practical, workshop-ready parts for heavy trailers, so this camshaft bush spider end suits common foundation brake service tasks. Listings highlight critical sizes and cross-references to make ordering and inventory control easier across mixed fleets. Finally, if you are building, repairing or upgrading braking systems on heavy trailers, ICS Trailers can supply matching foundation brake hardware to keep your equipment working safely.

Browse Foundation Brakes at ICS Trailers