Heavy-Duty 750kg Unbraked Rubber Torsion Stub Axle (Independent Suspension)

The Heavy-Duty 750kg Unbraked Rubber Torsion Stub Axle is an independent trailer suspension and wheel-end hub assembly engineered to deliver superior ride damping, exceptional road-holding stability, and high ground clearance for light commercial trailers, luggage haulers, camping trailers, boat trailers, and agricultural utility equipment. Rated for a combined load capacity of 550 kg to 750 kg per pair, this rubber-ride stub axle replaces conventional full-beam solid axles and leaf spring packs with a compact, independent suspension setup that absorbs road shock directly at the wheel.

Engineered with internal high-density elastomeric rubber cords encased within a heavy-gauge structural outer steel tube, the unit progressively dampens harsh shock loads and eliminates unwanted trailer bounce—both unladen and under full capacity. Because there is no solid straight beam running underneath the chassis, builders and fleet fabricators benefit from significantly increased central ground clearance and lower floor loading heights. Each stub axle is supplied complete with a precision-machined unbraked hub featuring a standard 4/100 Pitch Circle Diameter (PCD) pattern, high-speed tapered bearings, and heavy-duty wheel bolts.

Key Features & Benefits:

• Independent Rubber Torsion Suspension: Internal high-grade rubber cords compress under wheel movement to deliver progressive, self-damping shock absorption without requiring separate leaf springs or hydraulic shock absorbers.

• 550kg – 750kg Load Rating (Per Pair): Calibrated for light-duty commercial and utility applications, supporting up to 750 kg per pair across standard single-axle chassis designs.

• Eliminates Axle Beam Hang-Up: Independent stub configuration eliminates the low-hanging crossbeam, offering substantial center ground clearance for off-road tracks, launching ramps, and uneven work sites.

• Dramatically Smoother Towing Dynamics: Significantly reduces chassis vibration, road chatter, and rebound bounce when traveling empty or lightly loaded, protecting trailer bodywork and delicate cargo.

• Standard 4-Stud Hub Fitment (4/100 PCD): Fitted with an unbraked hub assembly featuring a 4/61/100 configuration (4 studs on a 100 mm Pitch Circle Diameter) compatible with common standard trailer wheels and wheel bolts.

• High-Speed Commercial Wheel Bearings: Equipped with precision-ground, high-speed tapered roller bearings and heavy-duty grease caps engineered for highway-speed haulage.

• Maintenance-Free Suspension Core: Rubber suspension cords require zero lubrication, will not rust together like conventional leaf spring stacks, and provide long, silent operational life.

• Tandem-Axle Adaptability: Can be integrated into multi-axle configurations (when used in non-load-sharing tandem layouts, a standard 17% derating factor applies to ensure safety margins).

Ideal Applications:

• Utility & Box Trailers: Smooth-riding independent suspension for single-axle goods trailers, drop-side haulers, and light flatbeds.

• Luggage & Town Trailers: Upgraded road dynamics for domestic luggage trailers, camping trailers, and teardrop campers.

• Boat & Marine Trailers: Low-center-of-gravity, corrosion-resistant wheel suspension suitable for small watercraft and jet ski trailers.

• Agricultural Carts & Service Skids: High-clearance stub mounting on mobile chemical sprayers, bowsers, and farm maintenance carts.

• Custom Low-Profile Trailers: Low-deck car trailers, equipment transporters, and mobile generator platforms requiring low loading heights.

Product Specifications:

• Product Name: Unbraked Rubber Torsion Stub Axle 750Kg

• Product Category: Axles / Unbraked Stub Axles / Rubber Torsion Suspension

• Suspension Type: Rubber Torsion Independent Suspension ("Rubbaride" System)

• Combined Capacity: 550 kg – 750 kg (Per Pair)

• Configuration: Individual Stub Axle (Available in Dedicated Left-Hand or Right-Hand Execution)

• Braking Type: Unbraked Wheel-End Hub Assembly

• Stud Configuration: 4-Stud (4/61/100)

• Pitch Circle Diameter (PCD): 4/100 mm (Accepts standard 4-bolt wheel rims)

• Fasteners: Heavy-Duty Wheel Bolts Included

• Tandem Use Note: If used in tandem without a load-sharing mechanism, derate the combined capacity by 17%

• Mounting Style: Chassis Bracket Weld-On / Bolt-On Mounting

• Application Compatibility: Trailers, Caravans, Boat Trailers, Horseboxes, Utility & Agricultural Vehicles

• Condition: Brand New Heavy-Duty Commercial Vehicle Axle Hardware