3t x 60 RND Galvanised Hydraulic Disc Braked Axle

SKU: N/A Category: Axles - Disc Braked Tags: alko, Australian Made, Couplemate™ Core Brand: Couplemate

60Mm Round Galvansied Hydraulic Braked Axle

Price

Price range: $1,966.00 through $1,974.00 Inc.GST

Stud Pattern

Clear

Face-to-Face Length

Minimum 1200mm. Maximum 2400mm

3t galvanised hydraulic disc-braked axle kit
5-stud or 6-stud Land Cruiser fitment
Hydraulic caliper brakes with 12-inch disc rotors
Includes Japanese bearing kits, seals and dust caps
Assembled and tested

Shipping

Select delivery location

3t x 60 RND Galvanised Hydraulic Disc-Braked AxlThe e

3t galvanised hydraulic disc-braked axle kit uses a 60mm round galvanised steel as the base for the boat trailer setup.

3t galvanised hydraulic disc-braked axle kit with 5-stud or 6-stud Land Cruiser fitment.

Hydraulic caliper brakes
12-inch disc rotors
Japanese bearing kits with seals and dust caps
Assembled and tested

Please provide the outside chassis width for axle-pad positioning. Axle-pad welding is not included.

The 60mm Round hydraulic-braked axle kit is a robust choice and, in tandem, increases the rating to 4.5t.

Couplemate manufactures 3t disc rotors that can be assembled on 50mm square or 60mm round galvanised axles. We recommend choosing these larger disc rotors. To maximise the length of service between maintenance periods.

Important: Axle pads locate and centre the trailer axle. Please advise the outside chassis width of your trailer. We can then weld axle pads into the correct position. This service is not included in the price because some customers don’t need it.

Note: Upgrading 6t axles to 4.5t provides a more robust rig.

The Galvanised Axle Kit consists of the following:

Galvanised axle kits have almost zero chance of rusting.

Purchase galvanised Rocker Rollers here.

Calculating the face-to-face measurement on your axle is essential to determine whether this is the right fit. Here’s how you can do it:

Measure the whole wheel offset: the distance between the inside of the hub and the rim and the outside of the rubber
Measure the distance between the chassis and rubber or add 25 mm
Add the chassis width by multiplying the number by 2

Technical Specifications

Weight – 120 kg.
Dimensions – 200 x 30 x 30 cm.

Visit our website for other types of marine brake axle kits, including 45 mm square mechanical override disc brake axle kits, 45 mm square hydraulic disc brake axle kits, and even Land Cruiser hydraulic disc brake axle kits. At Couplemate, we also offer U-bolt kits, tow hitch, and caravan trailer locks, to name only a few.

Calculating The Correct Axle Measurements

Measure the wheel offset. The wheel offset is the distance between the hub’s inside and the rubber’s outside.
Add 50 mm to the offset. Alternatively, choose your own distance between the rubber and the chassis.
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, 45 mm 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 by removing the hub and bearings and locating the number laser-engraved on the bearing. You will require both the inner and the outer bearing numbers.

Review the axle kit with various braking systems here

Frequently Asked Questions: 3t Galvanised Hydraulic Axle

❓ What type of braking system is required to operate this 3,000kg (3t) axle legally?

In Australia, trailers over 2,000kg Gross Trailer Mass (GTM) require a driver-controlled braking system with a breakaway mechanism. For a 3t hydraulic disc axle, you must pair it with an Electric-over-Hydraulic (EOH) brake actuator inside the trailer and an in-cab electric brake controller in your tow vehicle.

❓ Is this axle suitable for saltwater boat trailers?

Yes, completely. The heavy-duty hot-dipped galvanised finish offers exceptional corrosion resistance, and hydraulic disc brake configurations are preferred for marine applications over electric drums because they rinse out easily and do not contain magnets or hidden springs that rapidly seize up in saltwater.

🛠️ Installation & Maintenance: The Do’s and Don’ts

✔️ DO

❌ DON’T

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Mount bleeding valves up: Always locate the hydraulic brake caliper so the bleeder screw faces the absolute top of the axle to allow trapped air to escape completely during bleeding.
Flush after immersion: Always wash down the discs, calipers, and pads with clean fresh water immediately after submerging the axle in saltwater boat ramps.
Check fluid regularly: Maintain proper hydraulic fluid levels in your EOH actuator reservoir and inspect line connections for leaks.
Verify your bearing grease: Regularly inspect and pack the high-capacity marine bearings with quality water-resistant grease.

Don’t use mechanical override couplings: Do not attempt to run a 3t trailer on a simple mechanical surge/override setup; this is illegal in Australia for loads over 2,000kg.
Don’t weld near seals or pads: Never apply heat or weld near the pre-installed hub seals, brake lines, or caliper assemblies without protecting them with a wet cloth.
Don’t mix brake fluid types: Do not mix incompatible hydraulic fluids; check whether your specific EOH actuator specifies DOT 3 or DOT 4 fluid.
Don’t store with a locked park brake: Avoid leaving the hydraulic park brake clamped down for long storage intervals to prevent pad binding.

Additional information

Weight	90 kg
Dimensions	240 × 60 × 60 cm
Stud Pattern	6 Stud Landcruiser – 1/2-inch Studs, 5 Stud Landcruiser – 9/16-inch Standard Studs, 5 Stud Landcruiser – 14mm Studs
Beam Size	50mm Square
Coating	Galvanised
Brake Type	Hydraulic Disc
Capacity	3000kg

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.