Bearings

Caravan wheel bearings are a critical component for safe travel, typically sold in kits containing inner and outer bearings, seals, and a new split pin.

They require regular inspection and regreasing (at least annually or every 10,000 km) to ensure safe operation.

Common Bearing Types and Products

Most Australian caravans use standard tapered roller bearings, with common sizes often referenced by their corresponding vehicle fitment (Holden or Ford).

Standard (Holden) Bearings: Often found in many caravans, these are a common choice. A good example is the AL-KO Standard (Holden) Bearing Kit – Japanese 482005, which is rated highly and available from retailers like Couplemate.

Slimline (Ford) Bearings: Another popular option, known for their specific dimensions. The NSK Slimline (Ford) Bearing Kit – Japanese is a reliable choice.

Parallel Bearings: These are a popular choice for off-road use and heavier loads (rated around 1600kg per pair) because both sides of the hub use the same-sized bearing. The AL-KO 1600kg Parallel Wheel Bearing Set Japanese is a recommended product.

Heavy-Duty Bearings: For heavier caravans (2-tonne or 3-tonne), specific heavy-duty kits are available. The NSK 1x 2 Tonne or 3 Tonne Trailer & Caravan Wheel Bearing Kit – Japanese is praised for its quality components and load capacity, with users finding it performs well and is easy to install.

Maintenance Essentials

Regular maintenance is vital for longevity and safety.

Inspection: Check hubs for excessive heat after travel; this is a sign of potential issues. During service, inspect the bearings for pitting, discolouration (bluing from heat), or roughness, and replace the entire set if any damage is found.

Regreasing: Bearings must be thoroughly packed with high-temperature bearing grease. A bearing packer tool can help ensure sufficient and even greasing.

Replacement: Always replace the bearing cup and cone together as a set. Use a new split pin and inner seal every time you service the bearings.