45mm Round Mechanical Disc Braked Galvanised Axle


SKU: 45RGMDISC Category:
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45mm Round Mechanical Disc Brake Override Axle Kit

45mm Round Mechanical Disc Brake override axle kits ensure the braking safety of your boat trailer.

The galvanised 45mm round mechanical axle is disc braked and is rated at 1450kg.

Couplemate factory assembles galvanised axles daily in our Brisbane workshops to ensure your travels are problem-free.

How do Override Brakes Work?

When a tow vehicle exerts a force on the brake, the override mechanism is activated, and the internal mechanical callipers are further activated, giving a great braking experience and ensuring the safety of your vehicle.

Depending on the make of your vehicle, Couplemate offers several override axle kits..

Calculating the face-to-face measurement on your axle

  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.

Kit Contents:

Review more information on the override couplings and override brake axle systems here.

More Axle kits can be found at the links below.

Finally, an override coupling, brake cable kit, and a park brake plate and handle are necessary along with this product.


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