Stub and agricultural axles used by Australia's leading OEMs
Our OTR axle products have become the axles of choice for some of the country’s leading OEMs (Original Equipment Manufacturers).
Here’s why companies choose OTR – Tyres Wheels Axles range of axles:
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Supplying mining, agricultural, construction, infrastructure, forestry, and industrial clients with quality equipment
- We supply specialist stub axles to leading OEMs and the agricultural aftermarket, nationwide
- A range of quality aftermarket parts
- Over 100 years of combined experience in manufacturing and designing quality-controlled, endorsed products
Manufacturer and distributor of the world's toughest wheel and axles
At OTR – Tyres Wheels Axles, we provide complete axle assemblies and a broad spare parts range. We’re the specialists in the agricultural marketplace, as well as a national supplier of OEMs and aftermarket parts. As experienced manufacturers who design quality-controlled, endorsed products, we can tailor stub axle capabilities that suit your needs. Contact us or browse our axles today.
Benefits of choosing our stub axles
- In-house Australian manufacturing to suit your performance priorities
- Capacities of 500 kg to 20,000 kg at 25 kph
- Superior quality with reduced maintenance and higher safety margins
- Heavy duty designs with increased service life and proven reliability
- Design flexibility with custom designs and small runs
- Bolt on dust caps providing superior protection against the Australian environment
- Triple lip seals that ensure longer service life and easy maintenance
Stub axles trusted by OEM’s
Our manufacturing team designs and builds stub axles for both OEMs during original production and for aftermarket fitment. Every stub axle is rigorously tested for dimensional verification, load rating validation, and fitment before it leaves our facilities.
This means that our team builds to the same engineering standard, applying technical understanding to stub axle load behaviour, fitment tolerances, and failure modes. By working in close collaboration with these leading manufacturers, our team can also provide you with the aftermarket parts you need when a stub axle wears or fails.
Quality axle fabrication
Our stub and agricultural axles are locally manufactured and range in capacity from 500kg to 20,000kg. They are designed with longevity in mind, including triple lip seals and solid bolt on dust caps. Our axel fabrication involves the best BlueScope steel products. Heavy duty parts and components are developed to maximise the uptime of your work fleet. We supply the highest quality, innovative axel fabrication tailored to the specific requirements of your machinery. Our Australia-wide service centres, including our comprehensive on-site capabilities, provide total product support.
Comprehensive servicing Australia-wide
All OTR – Tyres Wheels Axles maintenance, repair and replacement services are carried out by highly trained staff using the latest diagnostic tools. Our work is guaranteed to meet the highest Australian standards and is backed by our comprehensive global technical and logistical facilities. For added peace of mind, OTR offers an extensive warranty on parts and services. So, by choosing our stub axles, your vehicles will spend more time at work and less time in the workshop, not to mention be safer for your operators.
Extensive Stub Axle Range
Braked stub axles
These stub axles are designed for agricultural applications. Just like a full axle, a braked stub axle comes with a drum brake attached to the hub, where the backing plate that supports the brake shoes is welded to the axle. The brakes are operated by a cam lever (sometimes referred to as an S-Cam), which is mechanical and can be operated by cable, air or hydraulic cylinder. Hydraulic cylinders are most common, as they can be operated by the tractor’s hydraulics.Capacities for this stub axle range from 3 tonne / axle to 30 tonne / axle. The maximum speed that can be reached is 30 km/hr, and brake drum sizes range from 250mm x 40mm to 406mm x 120 mm. Hydraulic cylinders to operate the brake are also available.
Double sided stub axles
This stub axle assembly was designed for a castor wheel, where the stub axle protrudes on both sides of the hub. Mounting is done by an arm on both sides of the wheel (also referred to as a yoke). The capacities range from 500 kg to 7,000 kg each and 5 stud hubs to 10 stud hubs on 335 PCD.
Spider stub axles
These stub axles come in one size, with a 100mm square shaft and 5 spike spider type hub. They are designed to use demountable 20” and 22.5” truck wheels with a 28-degree mounting flange. The spider stub axle assembly will only accept dual wheels, and capacity per assembly is 6,000 kg or 12,000 kg for a full axle.
Steering stub axles
These are short stub or full length axles complete with hub, including a vertical shaft (known as a King Pin) that allows the hub to pivot. Used for changing direction (steering), these stub axles are available in 5 on 140 PCD hubs and 6 on 205 PCD hubs. Capacities range from 3 tonne to 7 tonne / PR.
Stub axles
Stub axles are manufactured using a round or square shaft (usually short) with hubs designed to suit your application. The hubs have high speed tapered roller bearings. Our standard range is to European specifications; however, some specials can be manufactured. 1,600 kg capacity and above have triple lipped seals bolted on caps with grease nipples. Stub axles are usually used where an extra long axle is required by placing a beam between them. Shaft sizes are from 39 to 150 (round shaft) and 40 to 100 (square shaft). Capacities range from 500 kg to 20,000 kg.
Our Full Axles
Full axles
Full axles are manufactured using a round or square shaft with hubs designed to suit your application. The hubs have high speed tapered roller bearings. Most of our axles are manufactured to European specifications, i.e. 5 on 140 PCD, 6 on 205 PCD, 8 on 275 PCD, and 10 on 335 PCD. However, specials can be accommodated. 3,000 kg and above have triple lipped seals and bolt on caps. Shaft sizes range from 39 to 150 (round shaft) and 40 to 100 (square shaft), and capacities range from 1,000 kg to 40,000 kg. The axle lengths, face to face of the hubs, are up to 5,000 mm long
Steering full axles
A steering full axle is a short stub or full length axle that comes complete with a hub, including a vertical shaft (known as a King Pin), which allows the hub to pivot. These axles are used for changing direction (steering).Steering full axles are available in 5 on 140 PCD hubs, 6 on 205 PCD hubs and 8 on 275 PCD hubs. They have a capacity to accommodate up to 7 tonnes as required. Self steering full axles are available in 10 on 335 PCD hubs, with a capacity up to 24 tonnes and length of 3 metres.
Self steering suspension
24, 30 and 40 tonne balanced steering suspension
The new 24 and 40 tonne self-steering suspension axles feature a wheelbase of 2,000mm, which will accommodate a range of wheel and tyre assemblies. The walking beam type suspension is ideal to distribute the load evenly, while the self-steering on the rear tyres offers great stability and manoeuvrability. Double action hydraulic cylinders are used to lock out for reversing, and the mounting channel is easily adapted to any chassis. Mechanical drum brakes can be added as an option.
Get in touch with us about stub axles and fabrication today
Frequently Asked Questions
Need to learn more? Browse our frequently asked questions below.
What types of axles do you provide?
OTR – Tyres Wheels Axles supplies three main axle types, each suited to different load requirements and applications.
Stub axles: A short, single-wheel axle that connects one wheel hub to the machine’s frame. Found on the front steerable wheels of agricultural tractors and implements, as well as a range of industrial and construction equipment. Available braked or unbraked, and in standard or steering configurations.
Full axles: A full-length axle that spans the full width of a vehicle, connecting both wheels. Our full axles are available in standard and steering configurations, with capacities up to 7 tonnes for steering full axles and up to 24 tonnes for self-steering variants.
Self-steering suspension axles: Our self-steering suspension axles feature a walking beam suspension system designed to distribute load evenly across the axle. The rear tyres self-steer for improved stability and manoeuvrability, and double-action hydraulic cylinders lock out for reversing. Available up to 40 tonnes with a 2,000mm wheelbase to accommodate a range of tyre and wheel assemblies.
What is a stub axle?
A stub axle is a short, single-wheel axle that connects the wheel hub to the machine’s frame or suspension, bearing the equipment’s load while allowing the wheel to rotate. On agricultural tractors and implements, they’re typically found at the front steerable wheels, where they also need to allow pivoting for directional control.
How do I know which stub axle to choose?
The right stub axle comes down to four things:
- Load capacity (OTR covers 500 kg to 20,000 kg)
- Shaft size and type to match your hub and bearing configuration
- Whether your setup requires a braked or unbraked axle
- Your operating conditions.
It’s best to seek expert advice before choosing a stub axle variant.
How do I know if my stub axles need replacement?
It’s important to regularly check on your stub axles. Watch for these signs during regular inspections:
- Bearing noise or rough rotation: grinding, rumbling, or uneven wheel rotation points to bearing wear, often caused by inadequate sealing against dust or moisture ingress.
- Visible wear or scoring on the axle spindle: surface damage accelerates bearing failure and should be addressed before it causes a breakdown.
- Seal failure or grease loss: if seals are cracked or grease is visibly escaping, dust and contaminants are entering the bearing housing.
- Corrosion or cracking: surface rust on the axle spindle or any visible cracking means replacement is overdue.
- Excessive wheel play: any lateral movement in the wheel that goes beyond normal tolerance indicates bearing or axle wear.