45mm Round Hydraulic Drum Brake Kit – 1450kg

$631.04 - $650.00

SKU: 45R9H Category:
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45mm Round Hydraulic Drum Brake Axle Assembly | 9 inch

45mm Round Hydraulic Drum brake kit to suit 9″ drums. Suits 2000kg override couplings with a master cylinder — single Axle rating of 1450kg.

Hydraulic Axles are suitable for trailers and caravans.

The rating of this axle is 1450kg as it uses Ford Slimline bearings.

9″ hydraulic braked axles are very simple to install. The Hydraulic backing plates are attached to a weld ring welded to the rear of the axle shoulder.

The hardest part of the job is aligning the weld rings perfectly.

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

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

45mm Round Hydraulic Drum Installation help

Other 9″ mechanical and hydraulic braked axles here:

  • 40mm Square Mechanical Drum Brake Kit – 1000kg
  • 40mm Square Hydraulic Drum Brake Kit – 1000kg
  • 45mm Round Mechanical Drum Brake Kit – 1450kg
  • Square 45mm Mechanical Drum Brake Kit – 1450kg
  • Square 45mm Hydraulic Drum Brake Kit – 1450kg

Calculating The Correct Axle Measurements

  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 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.

Additional information

Weight70 kg
Dimensions240 × 50 × 50 cm
Stud Pattern

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Face to Face Length

1475mm – 58-inch, 1500mm – 59-inch, 1525mm – 60-inch, 1550mm – 61-inch, 1575mm – 62-inch, 1600mm – 63-inch, 1625mm – 64-inch, 1650mm – 65-inch, 1675mm – 66-inch, 1700mm – 67-inch, 1725mm – 68-inch, 1750mm – 69-inch, 1775mm – 70-inch, 1800mm – 71-inch, 1825mm – 72-inch, 1850mm – 73-inch, 1875mm – 74-inch, 1900mm – 75-inch, 1925mm – 76-inch, 1950mm – 77-inch, 1975mm – 78-inch, 2000mm – 79-inch, 2025mm – 80-inch, 2050mm – 81-inch, 2075mm – 82-inch, 2100mm – 83-inch, 2125mm – 84-inch, 2150mm – 85-inch, 2175mm – 86-inch, 2200mm – 87-inch, 2225mm – 88-inch, 2250mm – 89-inch, 2275mm – 90-inch, 2300mm – 91-inch, 2325mm – 92-inch, 2350mm – 93-inch


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