45mm Square Mechanical Disc Brake Axle | ElectroGal | Australian-Made

45mm Square Mechanical ElectroGal disc brakes on a galvanised axle.

ElectroGal disc rotors are the latest new product release from Couplemate. The cross-drilled disc rotors remove gases and debris from the disc face, which in turn improves performance.

Superior braking is achievable by drilling holes through the disc, this will give the moisture, gas and particles somewhere to escape. The 'scraping' action of the slots can clean the pad, and the edges of the groves increase friction, albeit at the expense of pad wear.

Disc Brake Wheel Options

• Holden HT
• Ford

Do cross-drilled disc rotors fit standard disc setups?

Yes, ElectroGal rotors by Couplemate fit all standard SL and LM mechanical and hydraulic caliper setups. When ordering, we need to know whether you wish for a left-hand side rotor or a right-hand side rotor.

Bearing Sizes

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

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

Kit includes

• 45mm Square Galvanised Axle rated @ 1450kg
• 2 X Galvanised Calipers + Disc Pads + Mounting Bolts.
• Anchor Plates Welded on Axle.
• 2 x Electrogal Disc Rotors + Bearings + Nuts.

Important: Axle pads locate and centre the axle of the trailer springs. Please advise the outside chassis width of your trailer. We are then able to weld axle pads into the correct position. This service is not included in the price as some customers do not require this service.

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 best 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 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.

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

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.

Tip

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

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