45mm Round Mechanical Drum Brake Kit – 1450kg

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Description

45mm Round Mechanical Drum Brake Axle assembly – 9 inch

45mm Round Mechanical Drum braked axle assembly to suit 9″ drums. Suits 2000kg override couplings. Single Axle rating 1450kg.

Round axles are ideal for trailers up to 2000 meters, however, axles over 2000 meters can tend to bow in the middle. We recommend using square axles for lengths longer than 2 meters.

The rating of this axle is 1450kg as this axle uses Ford Slimline bearings. Axle rating is controlled by bearing sizes.

  • 12749 – Outer Bearing.
  • 68149 – Inner Bearing.

9″ mechanically braked axles are very simple to install. Attach the mechanical backing plates to a weld ring, welded to the rear of the axle shoulder.

Mechanical weld rings are identical to electric weld rings. The hardest part of the entire job is to align the weld rings perfectly.

We recommend customers dry-fit the backing plates and weld ring, without grease. Once the drum is in position and locked with the axle nut, tighten the brake shoes.

Align the backing perfectly with the drum and then spot weld the ring in 4 places. Re-adjust where necessary and then finished the welding on the ring.

Your 45mm round mechanical drum braked axle is finished once the other end is completed.

The disc braked axle is another popular mechanical braked axle.

Installation help

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)
  • =

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.

Other 9″ mechanical and hydraulic braked axles here

Couplemate Trailer Parts sells only the best quality 45mm Round Mechanical Drum Brake Kit – 1450kg 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 May 21, 2019. 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.

Additional information

Weight180 kg
Dimensions90 × 90 × 90 cm
Stud Pattern

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Face to Face Length

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