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Wheel Hub and Bearings Kits
Wheel Hubs
Mackay wheel hubs and wheel-bearing kits use industry-proven, high-quality bearings, through-hardened to Rockwell hardness ≥ HRC 59, effectively enhancing strength, wear resistance, and service life. Raceways undergo multi-stage grinding and superfinishing processes, and utilise heavy-duty seals to ensure durable and quiet bearing operation.
Trailer Wheel Bearing Kits for Ford, Holden & Marine Axles
Looking for reliable replacement trailer wheel bearing kits in Australia?
Mackay’s is proud to introduce our new, heavy-duty Trailer Bearing Kit range, engineered to keep your towing safe and smooth. Utilising industry-proven, high-quality bearings through-hardened to a Rockwell hardness of ≥ HRC 59, these kits offer superior strength, wear resistance, and an extended service life.
Each kit features precision-engineered raceways that undergo multi-stage grinding and superfinishing processes, ensuring durable, quiet, and reliable operation whether you are running standard Ford/Holden configurations or demanding marine setups.
| Part Number | Product Description | Compatible Axle Types & Sizes | Best Suited For |
|---|---|---|---|
| WH9001 | Trailer Bearing Kit (Holden Slimline) | 39mm Round & 40mm Square Axle | Standard Holden Setups |
| WH9002 | Trailer Bearing Kit (Ford Slimline) | 45mm Square Axle | Standard Ford Setups |
| WH9003 | Trailer Bearing Kit (Ford Marine) | 45mm Square Axle | Boat Trailers / Marine Environments |
| WH9004 | Trailer Bearing Kit (Holden Marine) | 39mm Round & 40mm Square Axle | Boat Trailers / Marine Environments |
| WH9006 | Trailer Bearing Kit (Holden) | 1-1/2” Axle | Heavy Duty / Legacy Holden Setups |
WH9001
Trailer Bearing Kit Holden Slimline Suits 39mm Round and 40mm Square Axle
WH9002
Trailer Bearing Kit Ford Slimline Suits 45mm Square Axle
WH9003
Trailer Bearing Kit Ford Marine Suits 45mm Square Axle
WH9004
Trailer Bearing Kit Holden Marine Suits 39mm Round and 40mm Square Axle
WH9006
Trailer Bearing Kit Holden Suits 1- 1/2” Axle
FAQ
What is included in a Mackay’s trailer wheel bearing kit?
Each kit includes premium through-hardened bearings, races, and high-quality seals required for a complete axle hub overhaul.
What is the difference between standard and Marine trailer bearing kits?
Marine kits (like WH9003 and WH9004) feature specialised waterproof/marine seals designed to prevent water ingress, making them essential for boat trailers, while standard kits are optimised for dry land towing.
Why does Rockwell hardness matter for trailer bearings?
Our bearings feature a Rockwell hardness of ≥ HRC 59. This high level of hardening prevents premature wear, resists pitting under heavy loads, and significantly extends the life of your trailer hubs.
