Hub Kit 5x41/2x1/2 Disc Braked 1500kg

Upgrade your trailer braking with the Hub Kit 5x4.5 Disc Braked 1500kg — a purpose-built solution that combines durability, versatility, and real-world braking power. Designed to fit Duratorque and beam axles, and broadly compatible with NZ-manufactured trailer axles, this hub kit is built to withstand demanding loads while delivering confident stopping performance.

Why this hub kit stands out

• High-load reliability: Rated for 1500 kg Gross Vehicle Mass per axle when paired as hubs, giving you a robust, capable braking system for medium-to-heavy trailers.
• Broad compatibility: Specifically engineered for Duratorque and beam axles, with a wide range of wheel stud patterns to suit the most common rims and tyres.
• 5-stud pattern with 4½" PCD emphasis: The most commonly stocked configuration is the 5-stud, 4½" PCD pattern, ensuring easy matchups with popular rims and tyres.
• Disc brake versatility: Choose between a full cast disc or a fitted bolt-on disc, available in both cast iron and stainless steel to match your environment and maintenance preferences.
• Modular rotor options: Rotor sets are available in cast iron (TPT3110) or stainless steel (TPT3111), making it simple to tailor corrosion resistance and weight to your application.

Precise dimensions and configurations

Hub geometry is carefully specified to ensure proper fitment and optimal braking performance. Notable dimensions include:

• Outer bore (Fig A): 45 mm
• Inner bore (Fig B): 59 mm
• Flange thickness (Fig C): 15 mm (current model) or 15 mm (early model)
• Flange diameter (Fig D): 180 mm
• Boss length (Fig E): 34 mm (current model) or 27 mm (early model)
• Rotor diameter (Fig F): 225 mm standard, with variants offering 260 mm in some configurations

There are multiple rotor and mounting options to suit your stud pattern and installation needs:

• Integral discs (built-in rotor) available for both 4- and 5-stud configurations.
• Bolt-on discs offered in both cast iron and stainless steel to match corrosion environments and service life requirements.
• Stud patterns and compatibility: Options include 4- and 5-stud patterns with respective PCD and bore configurations to fit a wide range of rims and tyres.

Rotor sets and spare parts

To support maintenance and longevity, rotor sets are available as:

• TPT3110 Cast iron rotor set
• TPT3111 Stainless steel rotor set

There is a comprehensive range of spare parts for ongoing serviceability, with products shipped from suppliers within a typical 4–7 day window.

Who this is for and practical use scenarios

• Trailer owners upgrading from drum to disc braking for improved stopping power, especially under heavy loads or in hilly terrain.
• Fleet operators looking for durable, corrosion-resistant options (stainless steel rotor sets) for coastal or salt-prone environments.
• DIY enthusiasts and professional installers seeking a modular hub kit that fits Duratorque and beam axles while offering multiple stud patterns.
• NZ-based trailer builders and refurbishers who require compatibility with common NZ manufactured axle types and a widely supported rotor/disc ecosystem.

With this hub kit, you gain not just a component, but a concrete upgrade in braking performance, maintenance flexibility, and long-term reliability. The combination of disc braking, multiple mounting options, and available materials means you can tailor the setup to your load, driving conditions, and environment — from protected urban work trailers to rugged off-road caravans.

Note: All configurations are designed to deliver dependable performance per axle, with a paired-hub approach and compatibility across a broad spectrum of NZ trailer axles. Ships within 4–7 days of order to keep your project on track.