50mm Square 2t Electric Braked Axle Kit

$1,277.10$1,408.00 inc GST

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50mm Square Electric Braked Axle Kit - all 2t Axle Kits use Japanese Bearings

50mm Square Electric Braked Axle Kit 2t is recommended for trailers designed to tow earth moving equipment. The total towing capacity is 4.5t on a tandem trailer.

The trouble with a lighter brake kit is they fail the reverse test where sharp angles place extraordinary pressure on the inside rear of the tandem setup.made in australia

Snapped axles are not common for this range of axles. 4.5t rated kits all use this type of electric braked axle kit.

50mm Square Electric Axle Kit 2t will fix any problem you may be having with a lighter axle kit. This axle assembly kit includes:

2t Japanese Caravan Bearing Kit

How to calculate Face to Face measurement on your axle. Measure the wheel offset.

The offset is the distance between the inside of the hub on the rim and the outside of the rubber. Add 25mm or the gap between the rubber and the chassis. Multiply by 2 for two sides, and then add your chassis width.

Your rocker roller springs for this setup can be found by clicking this link.

Do not forget to leave your phone number at checkout. I will call you if your braked axle selections or other trailer parts look mismatched.

Caravan Electric brake FAQ can be viewed by clicking here.

Building a big heavy Tandem? Consider these drop legs:

Calculating The Correct Axle Measurements

As a result of viewing the video above, calculate the face to face measurement.
  1. Measure the offset wheel. The wheel offset is the distance between the inside of the hub and the outside of the rubber.
  2. Add 50 mm to the offset. Alternatively, choose your own distance between the rubber and the chassis.
  3. Multiply by 2 for both sides. Add your chassis width to the above number.

Metric to Imperial Converter

Convert Imperial (inches) to metric (mm)

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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.

Understanding the Calculation

The Face to Face measurements to calculate Tip to Tip measurement is as follows.

  • S/L 150mm Lazy add 100mm
  • S/L 10” Electric Drum adds 103mm
  • 2T 205mm Lazy add 172mm
  • 10” Disk Rotor add 98mm
  • PLL 10” Electric Drum adds 122mm
  • 2T 12” Electric Drum add 172mm

All Couplemate electric braked axles are machined and assembled in Brisbane. Couplemate manufactures caravan axles guaranteed for life.

Purchase other braked axles here:


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