Yes! You can certainly over tighten your trailer's hub assembly. Doing so can lead to several problems and safety concerns. For instance:

1. Bearing Damage
2. Heat Buildup
3. Wheel Alignment Issues
4. Difficulty in Removing Wheels
5. Safety Concerns

Appropriate service methods and proper repair procedures are essential for a safe and reliable operation.

When the hub must be removed from the axle for inspection or maintenance, the following removal procedure should be used:

1. Verify that you have the correct replacement hub - match the hub to your trailer's specifications.
2. Lift and support the trailer frame.
3. Remove the wheel from the hub.
4. Remove the grease cap carefully - pry around the flange of the cap as you turn the hub
5. Remove the cotter pin from the spindle.
6. Unscrew the spindle nut and remove the spindle washer.
7. Pull the hub towards you, until the unit comes off the spindle. Be careful not to let the outer bearing cone fall out of the hub - the seal will retain the inner bearing cone.
8. Set the hub on a clean surface to keep any contamination from entering the bearing cavity.

Clean the spindle and bearings, as well as inspect them for any damage. Replace the spindle or bearings, if it is necessary. Then, make certain that the right units have been accurately lubricated. Once all of the necessary inspections and repairs have been performed, reinstall the hubs.

1. Place new lubricated hub on the spindle.
2. Reinstall all of the components.
3. Tighten the spindle nut 30 to 40 ft. - lbs. when turning the hub to ensure that the bearings are seated accordingly. Do not move the hub after this step has been completed.
4. Loosen the spindle nut completely, until the nut can be naturally turned with your fingers.
5. Tighten the spindle nut by hand, without moving the hub.
6. Install the cotter pin - if it cannot be assembled, back the spindle nut up to the next available slot, then insert the cotter pin.
7. Bend the legs of the cotter pin over the top of the spindle, so that the spindle nut will not back off. The spindle nut should freely move with your fingers, being held in place by the cotter pin. Whereas, the hub should not have any noticeable movement when pulled back and forth.

• Lack of lubrication
• Overloading the vehicle
• Installing the axle nut too tight
• Installing the axle nut too loose
• Contamination of the grease (due to missing or defective grease caps & seals)

See our Resources for more information.

There are several signs that, ultimately, indicate a failing hub assembly on a trailer.

• Unusual noises
  • Grinding
  • Humming
• Excessive wheel play or wobbling
• The hub overheating
• Uneven tire wear
• Leakage of grease or oil from the hub area

If you notice any of these signs, it is critical that you address the issues promptly, in order to avoid further damage or potential accidents.

To accurately maintain your trailer's wheel hub assembly, follow these recommended practices:

• Regularly inspect the hub assembly for signs of wear, damage or leaks.
• Clean the hub assembly and remove any dirt or debris.
• Lubricate the bearings with the appropriate grease, according to the manufacturer's specifications.
• Adjust the hub assembly's tightness, as per the trailer's manual.
• Replace worn-out or damaged components promptly.
• Ensure proper torque specifications during installation.
• Follow the trailer's recommended maintenance schedule.

We have various Hub Kits available for you to choose from for your trailer application.

Choosing the right hub assembly for your trailer is crucial. To ensure proper fit and performance, consider the following factors when you are selecting a hub assembly:

• Compatibility with your trailer's axle and wheel specifications.
• Load capacity requirements.
• Brake compatibility (if applicable).
• Quality and reputation of the manufacturer.
• Availability of replacement parts.
• Guidance from a knowledgeable professional.

See our Bearing kits and U-Bolt Kits for other options to get you back on track.