45mm Round Axle

$17.55$15,152.00 inc GST

or 4 fortnightly payments from $4.39 with Afterpay More info

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45mm Round Axle Suits Wider Small Box Trailers & Boat Trailers up to 1450kg.

Couplemate Guarantees Our Axles For Life.

The leading cause of Bearing wear is due to the degree of precision machining. Bearing journals require smooth, accurate surfaces to ensure long bearing life.

Slimline (Ford) Bearing Sizes.

  • Inner bearing ID 35.00mm, OD 59.10mm
  • Outer bearing ID 22.00mm, OD 45.20mm
  • Seal ID 43.9mm, OD 59.10mm
  • Dust Cap 45.20mm

Parallel Bearing Sizes.

  • 2 x Inner bearing ID 35.00mm, OD 59.10mm
  • Seal ID 43.9mm, OD 59.10mm
  • Dust Cap 45.20mm

45mm Axles may be perfect for your trailer, caravan or camper. If you are having problems towing your rig straight and true, then we have a few tips for you below.

Round Axle Common Problems:

  • Too much weight will bend this Round Axle which will result in excess axle flex. Axle flex occurs when a heavily laden trailer spring rebounds on the highway causing the 45mm round axle to flex up and down, or vibrate in the middle.
  • Springs fatigue can cause premature failure under axle flex or overload conditions. Once your load is over 1450kg you will start to experience axle flex.
  • Axle flex and spring failure can occur if you have incorrectly selected a solid or hollow axle for your application.

If the axle is bending, purchase a 45mm square axle and update to 1.5t. It is not very expensive in comparison to replacing springs that have suffered fatigue.

Other Common Problems:

  • Poorly engineered 45mm round axles can result in excessive bearing wear.
  • Are your tandem tyres wearing unevenly? Here is a link that provides the correct method to test your axles.
  • Before replacing your 45mm round axle, examine it for cracks in the steel. Some suppliers supply non-virgin steel or scrap steel and forge this steel into solid square or round shape for axle production.
  • Chinese bearings are the second biggest cause of axle failure. If you plan driving on the highway, use Japanese bearings. The combination of Japanese Bearings and Couplemate axles will help you significantly lower maintenance for your rig.

Solutions To Axle Problems:

  • You should upgrade 6 stud Landcruiser axles to a parallel axle configuration.

For more information about why Couplemate uses quality steel, check out my article; Axle Steel for Caravan and Trailer Axles.

How to measure your straight axle correctly.

How to measure bare or straight axles.

Measure bare or straight axles from tip to tip.

Couplemate supplies axles with the following ratings:

  • 39mm Round Axle | 750kg
  • 39mm Round Galvanised Axle | 750kg.
  • 40mm Square Axle | 1000kg.
  • 40mm Square Galvanised Axle | 1000kg.
  • Round Axle 45mm | 1450kg.
  • 45mm Round Stub Axle PLL | 1600kg
  • 45mm Round Galvanised Axle | 1450kg.
  • Square Axle 45mm | 1450kg.
  • 45mm Square Parallel | 1600kg.
  • 45mm Galvanised Square Axle | 1450kg
  • 50mm Round Axle | 2250kg
  • 50mm Square Axle | 2250kg.
  • 60mm Round Axle | 3000kg.
Australian Made and Australian Owned.
Australian Made and Australian Owned.
Couplemate Trailer Parts sells only the best quality 45mm Round Axle and caravan spare parts throughout Australia.

Customers are welcome to either pickup or take advantage of our low freight rates. Express shipping to Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and Hobart.

We also ship products to New Zealand via Australia Post Air Express.

© Steve Wotherspoon June 10, 2014. Images and text may be copied, provided a link back to the copied page and the source is displayed where the content or image is located.

Last Updated on

Additional information

Weight 90 kg
Dimensions 90 × 90 × 90 cm
Axle Profile


Tip to Tip Measurement

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