Boat Trailer Axles

Galvanised 40mm Square Axle 73" (1850mm) 1000KG Rated

SKU: SR-A40S73G

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The A40S73G Galvanised Trailer Axle is a heavy-duty 40mm × 40mm solid square steel axle measuring 73" / 1850mm tip-to-tip. It is precision-machined for the common Australian LM/Holden bearing configuration and rated to 1000kg.

Key benefits

Key benefits

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Key Benefits

  • 73" / 1850mm tip-to-tip
  • 40mm × 40mm solid square steel
  • 1000kg axle rating
  • Galvanised for improved corrosion resistance
  • Excellent for boat and marine trailer applications
  • Precision-machined for LM / Holden bearings
  • Common Australian trailer bearing sizes
  • Suitable for compatible braked and unbraked hubs
  • Stronger 1000kg alternative to common 39mm round 750kg axles
  • Ideal for trailer repairs, rebuilds and axle replacement

Dimensions

  • Overall length: 1850mm
  • Nominal imperial length: 73"
  • Axle section: 40mm × 40mm square
  • Measurement: Tip-to-tip
  • Inner bearing ID: approx. 31.75mm
  • Outer bearing ID: approx. 19.05mm
  • Rated capacity: 1000kg

LM / Holden Bearing Compatibility

  • Inner / Large Bearing
  • Cone: LM67048
  • Cup/race: LM67010
  • ID: approx. 31.75mm
  • Outer / Small Bearing
  • Cone: LM11949
  • Cup/race: LM11910
  • ID: approx. 19.05mm

Suitable Applications

  • Boat trailers
  • Fibreglass boat trailers
  • Aluminium boat trailers
  • Jet ski trailers
  • Single-axle trailers
  • Tandem-axle trailers
  • Utility trailers
  • LM/Holden-bearing hubs
  • Compatible braked and unbraked hub installations

Important Fitment Information

  • Before ordering, confirm the trailer requires a 1850mm tip-to-tip axle, 40mm × 40mm square beam, LM/Holden bearing profile and 1000kg capacity. Also check the hub-face measurement, spring and U-bolt configuration, wheel offset and mudguard clearance.

Signs Your Trailer Axle Needs Replacing

  • Replace or professionally inspect the axle when there is bending, significant corrosion, damaged bearing journals, worn spindle threads, abnormal tyre wear, wheel misalignment or repeated wheel-bearing failure.
  • When fitting a new axle, also inspect the bearings, seals, hubs, springs, U-bolts, spring plates and other suspension hardware.

Shipping

Ships Australia-wide