Results for 'fifth wheel'

A fifth wheel is the horizontal coupling plate on a tractor unit which slides underneath the trailer bed plate during coupling. It has jaws which clamp onto the kingpin.

The Disc-Lock Safety Wheel Nut is a reliable, vibration-proof solution to prevent wheel loss in commercial vehicles. Approved by manufacturers and widely used globally, it enhances safety, minimizes costs, and features Greenkote® coating.

Explore what an ISO neck profile is, how ISO 1726 ensures tractor-trailer compatibility, and the effects of kingpin position, BEVs, and urban trailer design.

Enhance safety with Dustite LR, a wheel nut indicator and protective cap designed for wheels with trims. Instantly shows nut movement, indicates overheating, and shields against weather and corrosion.

Safewheel Twin®: Durable retainer for two wheel nuts, prevents movement, enhances safety. Weather-resistant, supports fleet checks. Easy fitting and removal.

Safewheel®: A robust wheel nut retaining ring and protective cap combo. Retains and protects wheel nuts, reducing the risk of loosening and enhancing safety. Durable, reusable, and supports fleet checks.

Upgrade your vehicle with the PSI Auto Inflation System for constant optimized tire pressure, extended tire life, reduced fuel consumption, improved safety, and over 1.5 million units in operation worldwide.

Ensure compliance with R141 for HD commercial trailers with Aspoeck TPMS | Connects to multiple manufacturers | Supports Haldex, Knorr-Bremse & Wabco ECUs

BPW's Generation 2 landing leg is a durable and safe solution with a new design. Lightweight, reinforced, and maintenance-free for three years.

Checklink®: A dual-purpose wheel nut indicator and retainer. Prevents loosening of nuts with a unique 'S' shape, offering visual indication and retention. Enhances safety and supports fleet checks.

Checklock SQ®: Stainless steel retainer to prevent nut loosening. Two coils tighten around adjacent nuts, enhancing safety, re-usable, and supports fleet checks. Certified by TÜV.

Checkpoint® Original: The world's first and best loose wheel nut indicator. Invented over 30 years ago, it offers instant visual indication of nut movement, supports fleet safety checks, and ensures roadworthiness.

The JOST KKS Auto Coupling system provides the facility for fast, safe trailer coupling and uncoupling without the need for the driver to exit their cab.

Find out the legal size limits for HGVs and trailers in the UK, including combination lengths, heights, widths, and aerodynamic allowances.

Under UN ECE R141, TPMS is required in new EU trailer types from July 2022. It is mandatory for all registered trailers by July 7, 2024. Exemptions apply in UK.

Prevent trailer rollaway risks! Learn why applying park brakes is crucial. Don-Bur's infographic explains trailer air brakes to enhance safety during coupling.

Understand how trailer rollover prevention systems like RSS, RSP and RSC work, including key stages, sensor input, and driver safety insights.

EBPMS stands for Electric Braking Performance Monitoring System and is a system to continually monitor how effective the brakes are at any given time.

Understand double deck trailer height limits – from UK builds up to 4.95m to low-height 4.0m designs with reduced decks for forklift side loading.

Split coupling is the frowned-upon practice of reversing the tractor fifth wheel under the trailer bed plate just enough to support the trailer but not enough to couple positively with the trailer kingpin.

A Kingpin is a heavy duty attachment pin that extends below the trailer bed plate. During coupling, this locks into the tractor unit fifth wheel.

The bed plate (or rubbing plate) is a heavy duty horizontal plate on the underside of the front of the trailer which is designed to sit and slide on top of the tractor fifth wheel. It houses the kingpin.

The swan-neck (or goose-neck) is a section of a trailer chassis where the height drops from a first level (to suit the fifth wheel height) to a second, lower level. These types of chassis are known as Step-Frames.

Flap and valance is a type of spray suppression system used typically in lieu of mudlflaps.

Don-Bur has built 25 straight-frame box van 15.65m Longer Semi-Trailers (LST’s) for a parcel courier, including an industry-first “wedge” shape with a full-length Lifting Deck.

Argos tests innovative trailer steering system to improve efficiency and reduce costs. Don-Bur and VSE partner to develop a new Electronic Trailer Steering (ETS) system that could revolutionize trailer manoeuvrability. Visit donbur.co.uk to learn more.

Yesterday marked the official announcement from the DfT to permit controlled trials of High Volume Trailers (HVT’s) and Wincanton has been working closely with Don-Bur to design and manufacture its first 15.65m long Teardrop™ pillarless tri-axle in readiness for the VSO (Vehicle Special Orders)

This 10m long, single axle urban Teardrop™MK2 runs at just 3.985m overall height and incorporates a 1500kg retractable Dhollandia Tail-Lift for Store Deliveries.

Don-Bur Debuts 4m High Teardrop™ Trailer for Fuel-Efficient European Hauling. New design optimizes aerodynamics and load capacity, saving 10% fuel and CO2 emissions. Visit donbur.co.uk to learn more.

Business Post and trailer builder Don-Bur have developed a new trailer design that saves in excess of £6,500 in fuel and takes over 24 tonnes of CO2 emissions.

Don-Bur has just completed the design and manufacture of another large order of 52 UK pallet “Wedge” hydraulic Lifting Deck trailers; this time for a global parcel carrier. 

In order to maximise internal apertures, particularly within Double Decks, Don-Bur has developed a new trailer neck design concept.  The result is an effective neck thickness equal to that of the rubbing plate alone which is commonly circa 10mm.

Coupling and uncoupling the correct way in the right order is critically important to ensure that all trailer functions operate correctly and avoid unnecessary accidents.

For the first time, Don-Bur has manufactured a Lifting Deck tri-axle trailer design with a lifting roof for a well-known parcel company. 

Don-Bur announces a groundbreaking achievement with Allied Bakeries. They have unveiled a new generation of high-volume box van double deck trailers.

Dick Denby has been lobbying the government for the use of his B-Double artic trailer combination for over 20 years.

Don-Bur unveils cutting-edge trailer safety features at Road Transport Expo 2025, including the new Safety Suite on a TIP trailer for Whistl. See it at Stand Y25.

Considerations for Longer Semi Trailers (LSTs): manoeuvrability, weight, and steer axles crucial for efficient deployment. Plan wisely.

Slash HGV fuel costs, boost profits, and drive sustainably. Discover expert tips, eco-driving techniques, and fuel-efficient upgrades today!

Don-Bur's 'Wedge' Double Deck trailers offer a straight chassis, maximizing load capacity with unbroken floors, high clearances, and up to 60 UK pallet capacity

In Europe, vehicles are classified according to UN ECE Standards

Understand how HGV roller brake tests work! This guide explains setup, testing and data analysis involved in ensuring optimal braking performance for HGVs.

Stop tyre blowouts & fiery brakes! Wheely Safe's award-winning tech delivers real-time alerts for loose wheels, overheating brakes & underinflated tyres. Retrofit or OEM, improve fleet safety & efficiency now!

Ensure your HGV trailer complies with spray suppression regulations. Learn about the advantages and applications of thermoplastic mudguards for HGV trailers.

Used 2017 box van trailer for sale | high cube | tandem-axle | 4.4m high | roller shutter | slide-away tail-lift

Used 2019 SDC tri-axle curtainsider trailer for sale | 13.7m long | 4.2m high | XL rated | Flush fit rear doors | Omega hardwood floor

Learn how HGV trailer brakes work, including air supply lines, dual-chamber actuators, ABS, EBS, and emergency braking for safe and efficient operation.

Used 2016 box van trailer for sale | SDC/Lawrence David | Tri-axle | 4.2m high | roller shutter | 1.5T Dhollandia column tail-lift

Understand trailer steering axles including self-steer, positive steer and command steer to reduce tyre scrub and improve manoeuvrability.

In operations where wheeled stillages are loaded and unloaded, any type of wood-based floor can quickly deteriorate.   By laying an aluminium sheet over the top, this extends the floor life significantly.