50mm Square Mechanical Disc Brake

$800.00 - $1,306.00

Engineered for Quality

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50mm Square Mechanical Disc Brake Axle

50mm square mechanical disc brake is activated when the tow vehicle engages the override brake.

Disc Options

  • Holden HT
  • Holden HQ
  • Ford
  • 6 Stud Landcruiser Disc Rotor
  • 5 Stud Landcruiser Disc Rotor
  • 6 Stud Parallel Landcruiser
  • 5 Stud Parallel Landcruiser

Bearing Sizes

  • Slimline Bearing Configuration (LM12749/LM68149)
  • Parallel Bearing Configuration (LM68149/LM68149)

Re-check the outer bearing nuts for tightness immediately after the first trip.

Couplemate manufacturers and tests all square mechanical disc brake override axles.

Trailer Parts include

Mechanical Override Disc Brakes are simple brakes to understand and maintain. Ensure brake caliper adjustments are made on the caliper bolt and not the cable adjuster.

Couplemate installs the latest Al-ko calipers on all of our mechanical braking systems.

The force exerted during braking from the tow vehicle engages the override brake, which in turn activates the mechanical calipers causing braking.

Please note: We ask you for your face-to-face measurement of your axle.

The latest news on small axles causing trailer and caravan axle fatigue.

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 hub’s inside and the rubber’s outside.
  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.
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 number.

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

 

Tip

Did you know that the bolts holding in your caliper can unwind on rough, corrugated roads?

Couplemate uses a medium-strength Loctite on all mechanical caliper bolts.

Review more disc-braked axles below

Additional information

Weight90 kg
Dimensions240 × 60 × 60 cm
Stud Patternss

5 Stud Landcruiser – Parallel, 6 Stud Landcruiser – Parallel, Ford (5 x 114.30mm), Holden HT (5 x 107.95mm), Holden HQ (5 x 120.65mm), Land Cruiser 6S, 5s Landcruiser (5 x 150mm)

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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