45mm Round Unbraked Lazy Axle Kit

$405.27$609.00

SKU: 45RL Category:
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45mm Round Unbraked Lazy Axle Assembly

45mm round axle assembly kit with lazy or unbraked hubs and Japanese bearings.

Australian MadeHere is why Couplemate make one of the best unbraked axles

  • BlueScope Steel
  • Quality Hubs
  • Japanese Bearings
  • Pre-assembled to factory specifications.
  • Finally, Couplemate’s lifetime warranty against faulty craftsmanship.

I recommend Japanese bearing on all trailer builds and caravan servicing work.

Axle includes:

45mm round lazy axle kit is ideal for trailers up to 1450kg.

Note: 45mm Square axles are recommended for heavier loads and tandem or wide trailers over 2000mm. Undersized axles and heavy loads cause vibration fatigue.

Learn about axle vibration fatigue here.

A wide 45mm Round Axle Assembly Trailer suffers from axle flex if overloaded. Axle flex will rapidly wear your springs due to the reverberation of vibration from the centre of the axle back to the spring.

Effectively, your spring is working twice as hard as it should.

Learn how to replace broken springs here.

Axles and ratings are as follows

Calculating The Correct Axle Measurements

  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 the 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)

  • =

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.

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