Hubs and Axles

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The trailer axle and the trailer hubs are the most integral parts of your trailer running gear. They attach the wheels to the chassis and keep the positioning of the wheels to carry the weight of the trailer as well as cargo. The axle soaks up both speeding up and braking forces of your vehicle. It likewise plays a main duty in stopping, steering, and driving.

TOW-MAX has a wide range of axles and hubs for campers, a-frame trailers, utility trailers, horse trailers, boat trailers, lawn & garden trailers, mobile catering trailer, light trucks, RV, agricultural machinery, etc. We also provide spare parts for the repair and maintenance of tow axles and hubs. We are working with the leading trailer parts and accessories manufacturer in China, which offers excellent value in the industry from other suppliers.

Our experienced team has been dedicated to designing and manufacturing trailers parts for over 15 years to bring the best quality axle, hub, and components to our Sydney, Melbourne, Adelaide, Brisbane, New Zealand, Atlanta, Houston, Boston, Chicago,  Incinnati, Montreal, Ottawa, Toronto, Mexico City, Veracruz, Guadalajara, Dubai customers. You can trust us when we say that there is nothing that we cannot help you with regarding the trailer axle and hub.

Trailer Idler Hubs

•   All-steel construction for superior strength and durability.
•   Includes bearings, grease seal, grease cap and lug nuts.
•   It provides 100% of hub cavity pre-greased with sticky grease.

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Half Beam Torsion Axles

• Stronger and durable spindle and easy to replace.
• Provides a smooth, quiet, safe ride and can eliminate the need for an axle.
• Bolt-on mounting system with various spindle arm position can be offered as request.

• 1100 lbs ~ 2200 lbs Half Beam Torsion Axles apply to light duty trailer, Such as personal watercraft and motorcycles trailer.

• 3500 lbs Half Beam Torsion Axles suit for medium duty trailer. , utility trailer, box trailer, ect.

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Brake Hub Drums

•  A variety of sizes, capacity and stud pattern available.
•  Suitable for electric or hydraulic or mechanical brakes.
•  Constructed of cast iron with a black painted finish.

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Brake Assembly / Backing Plates

• A wide range of load capacity available 2,200 lbs. to 6,000 lbs. per unit.
• Available for electric or hydraulic or mechanic functions
• Hole mounting comes with mounting bolts, nuts, and lock washers are assembled.

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Straight Beam Torsion Axles

• A wide range of load capacity according to trailer requirements.
• Suitable for fitment to and use on all types of trailers.
• Self-contained and easily fitted to the trailer chassis.

• 1100 lbs ~ 2200 lbs straight beam torsion axles apply to light boat trailer, box trailer, ect.

• 3500 lbs ~ 5200 lbs straight beam torsion axles suit for medium utility trailer,  horse float ect.

• 7000 lbs straight beam torsion axles for Heavy-duty trailers.

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Spindle Stub Axle

• Capable to traverse rough roads without disturbing its load
• Improves braking characteristics, especially on slippery roads.
• Castle nut, washer, and cotter pin included

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Agricultural Hubs

• Wheel bearings and seals are easy to maintain.
• Heavy duty design for consistent quality and performance.
• Popular PCD design for light truck and agriculture tractor rims.

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Straight Beam Spring Axles

• Parts are much more readily available.
• Assembled with hubs with super lube spindle makes more flexible use.
• More off-road capability and suspension travel.

• 750 lbs ~ 1250 lbs capacity straight beam spring axle ideal application for light utility trailer, for hauling personal watercraft and motorcycles.

• 3500 lbs straight beam spring axle for medium duty trailers.

• 6000 lbs and  7000 lbs capacity straight beam spring axle for heavy-duty trailers.


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Disc Brake Hub And Calipers

• Disc brakes are less affected by water or rust and are extremely fade-resistant.
• Shorter the brake lines to the calipers for faster response time.
• Cooler running brakes and worry-free performance hubs.

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Bearing Kits and HUB Spares

• Excellent quality bearing kits and hubs.
• Very easy to install and replace.
• Rust resistant for the salty environment and boat trailer.

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TOW-MAX Is A Reliable True Partner

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One Stop Sourcing
Large Stock
Large Stock
Fast Delivery
Fast Delivery
Free Warehousing
Free Warehousing
Customer Inventory  Management
Customer Inventory Management
Supply Chain Management
Supply Chain Management

6 Factors You Need to Consider When Purchasing Trailer Hubs and Axles

Type of trailer axle & hub

The trailer axle is a square or round shaft which comes in three styles, straight axles, drop axles, and torsion axles. Lazy hubs, hub drums, and disc hubs are the common types of trailer hubs. Select the right one according to your market and application request.

Hub face dimension (Track length)

It is determined by measuring the distance from the center of one tire to the other center, also known as the hub face. You can get a more accurate measurement by calculating the distance from one-wheel mounting flange to the other flange.

Load / Capacity of trailer axle & hub

The load rating of the trailer axle needs to support the maximum gross vehicle weight (GVW), which refers to the weight of the trailer and the weight of the intended cargo. If your trailer has more than one axle, split the GVW by the variety of axles to determine the optimum load capacity of each axle.
If a trailer axle needs the support of 3500LBS, then the load capacity for the matched hub should be 1750LBS.

Mounting Position

The topic discusses the axle 's mounting position. The mounting position is usually the measured position where the axle is attached to the frame of the trailer. That is the distance from the center of the spring for a leaf spring and the mounting position is determined by this.
As torsion axles do not have mounting springs, the mounting position is determined by the bracket width (typically means the outside dimension of the frame width or frame members).

Spring center dimension

This size is crucial. If it's not correct, you may bend the axle. In the middle of the spring mounting pad, keep the tape measure and ask the assistant to do so as well. Measure the distance across the two points.

Brakes (or not)

Some trailer axles have brakes, some don't. To see if you need them, review your state regulations. There are a few types of electrical or hydraulic or mechanical actuation to choose from, such as drum brakes or disc brakes.

Usage & Maintenance of Trailer Hubs and Axles

Remove Moisture Build-Up

Remove Moisture Build-Up

The most crucial reason for trailer axle upkeep is that they can have moisture buildup. Therefore, it is essential to clean the axles after the trailer is used to eliminate any moisture from them.



Check if the hub bearings are affected by some form of fractures, dents, or any opening that seems to be dangerous. Damages to the bearings will seriously impact the use and also the life of the axle.



The majority of the issues with your trailer axle arise from not oiling the wheel bearings regularly. The bearings must always be well lubricated. You can grease the hub once a year or every 3000 miles if you use your trailer a lot for freight.

Align the trailer axles

Align the trailer axles

A vital aspect of trailer repair is correct axle alignment. The cause of irregular tire wear and suspension part strain is always that of unaligned trailer axles. Make sure the trailer is unloaded to fit the suspensions correctly. Release the rest of all " binds " by moving the trailer backward first and then dragging it a sufficient distance forward. On a flat floor, check the axle alignment side to side and front to back correctly with properly inflated tires. The trailer should be tightly restrained.

The Seal

The Seal

Check the seal if you have faults and replace it for any cracks that may occur. The seal must be elastic and hold off any liquids. Too much grease on a bearing will damage the seal ring.
If the ring is broken, oil or grease will start to seep out of the ring, and once the ring is opened, dust and debris will also enter. The dust mix and liquid create a dirty Brown material with terrible effects that can adhere to your bearings.

The Race

The Race

The bearing has races or protrusions that are inner and outer. Each race is a groove ring where a group of balls lies. In the groove, the balls are supposed to be free.
To see any signs of injury, run your hands over the race. During acceleration or deceleration, and decay can cause an improper fit and can cause noise. Be sure to write down the trailer axle part number for a quick guide for a fix if you notice a flaw.

Trailer Hubs and Axles FAQs

How often should trailer axles & hubs be greased?

Appropriate lubrication helps preserve the capability and also dependability of your trailer's axle and hub. Bearings need to be lubed about every 12 months or 12,000 miles unless specified by the hub supplier.

How to position the trailer axle?

The tip of positioning a trailer axle is to ensure that the axle stays in the correct position. About 10 to 15 percent of the trailer's gross weight is placed on the tongue. Finding the appropriate place of the axle can take some testing. When developing your trailer, it is best to place the axle before laying out the trailer. This will certainly guarantee that the axle is put in the right placement to fit any long-term weight positioned in the trailer.

What are the benefits and differences between leaf springs and torsion type axles?

Most of the trailers use leaf spring axles. However, torsion axles are progressively being used for their premium long life, security, and safety. The leaf spring is attached to the axle by U-bolts. It supplies support in the trailer shock absorber.
Torsion axle trailer, the buffering is in the axle. Torsion axle offers much better deterioration resistance than standard fallen leave spring axles. The trailers with the torsion axle lower down the center of the lots, offering more excellent stability to the trailer. Torsion axle trailers likewise have the negative aspect of a low variable rate. They provide less adaptability when loading or discussing harsh terrain. Several specialists say that fallen leaf springs are the better choice, although torsion axles are the most effective alternative.

What kind of finishes are TOW-MAX hub?

Both painting and hot-dip galvanizing is available.

How to Measure a Trailer Axle?

There are two dimensions you require to know. To get the right substitute for the trailer axle. Initially, you need to measure the range between the hub face, track size, or tire center dimension. After that, you require to make a spring-center measurement. With these two measurements, you can conveniently order or buy brand-new axles for your trailer. If you can measure the facility of the spring, you can calculate the hub face of the busted axle.

What are the Trailer Hubs' Standard Temperature Rating?

That would be a negative indication if you were to go above 200 degrees. Usually, you're right if all the hubs are at the same temperature. It's just really a concern if one of the hubs is hotter than the other hubs.

How do you know if your axle is bent?

The vibration may be accompanied by an unusual rumble below the vehicle, a strange tire wobble, or dull driving and steering, indicating a bent axle. The vibration may be particularly noticeable during acceleration, deceleration, or turning.

What causes a trailer axle to bend?

The reason the axle has an upward curve is that when the load is placed on the axle, the axle straightens, and your tires run evenly. When the inside of your tire tread is damaged, your axle is overloading, causing it to bend too much.

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