40mm Square Galvanised Axle – Unbraked Hub

$402.00 - $568.00

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40mm Square Unbraked Galvanised Axle Assembly

40mm square unbraked galvanised lazy axle assembly is ideal for small and boat trailers up to 1000kg capacity. Boat trailer 40mm axle buyers may like to call us for galvanised equipment.

Australian MadeWe manufacture our axles from Australian steel and hot-dip galvanise them in Brisbane. We then machine the finished galvanised product.

40mm square assemblies are supplied with Japanese bearings and hubs, ensuring the best quality. It consists of the following:

  • 1 x 40mm round axle
  • Two lazy hubs
  • 2 x Japanese Bearings

It’s ideal for small trailers weighing up to 1000 kg and comes greased and wholly assembled for your convenience.

However, a 40mm square Axle Assembly is unsuitable over 2300mm or tandem trailers. In the case of a wide trailer axle assembly, the axle tends to suffer from axle flex. This wears out the springs rapidly due to vibration reverberation starting from the axle’s centre to the spring. The springs wear out much more than they should.

Some of the models this is suitable for our Ford, HT Holden, Commodore, HQ Holden, and Landcruiser 6-stud.

Log on to Couplemate’s website for a wide range of caravan and trailer parts, such as bearing seals, kits, and parts, shock absorbers, and independent coil suspension. We offer delivery in Australia, New Zealand, the USA, Canada, France, Ireland, and Germany.

Axles and ratings are as follows

Calculating The Correct Axle Measurements

  1. Measure the offset wheel. The wheel offset is the distance between the hub’s inside and the rubber’s outside.
  2. Add 50 mm to the offset. Alternatively, choose the distance between the rubber and the chassis.
  3. Multiply by 2 for both sides. Add your chassis width to the above number.

Still unsure of what measurements to take? Check out this handy guide below:

[P] – Check material specifications. What size and profile is the axle (for example, 45mm Square)
[T] – Overall axle length (tip to tip)
[F] – Hub face-to-hub face measurement
[A] – Chassis width
[C] – Tyre clearance
[B] – Back offset
[H] – Tyre to chassis
[G] – Axle pad centres

How To Measure An Axle

Identifying Bearing Combinations

You will also need to identify your bearing combination, which can be done by pulling off a hub and bearings and locating the number laser engraved onto the bearing. You will require both the inner and the outer bearing numbers.

Where to identify bearing number. Look for the laser engraved number on the bearing.

Review other lazy axles here

Additional information

Weight50 kg
Dimensions240 × 50 × 50 cm
Select Hub

HT Holden – 5 x 107.95mm (7/16"), Ford – 5 x 114.3mm (1/2"), 6S Landcruiser – 6 x 139.7mm (1/2"), 5S Landcruiser – 5 x 150mm (9/16")

Axle Profile

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.


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