5200 lb – 7000 lb Trailer Axle Hub and Drum Grease Seal

Description

5200 lb – 7000 lb Trailer Axle Hub and Drum Grease Seal

The 5200 lb – 7000 lb Trailer Axle Hub and Drum Grease Seal is specifically designed to maintain the integrity of your wheel bearings and extend the life of your trailer’s axle components. Engineered for use with heavier-duty axles, this double lip grease seal works tirelessly to keep grease where it belongs—inside the hub—and contaminants like dirt and water out. By providing a strong, reliable barrier, the seal ensures smooth operation, reduced friction, and enhanced safety for every mile you tow.

Key Product Specifications and Compatibility

• Inner Diameter (I.D.): Approximately 2.25″
• Outer Diameter (O.D.): Approximately 3.376″
• Thickness: Approximately 0.375″
• Double Lip Design: Offers superior sealing performance, keeping grease in and contaminants out
• Axle Ratings: Fits 5,200-lb, 6,000-lb, and 7,000-lb trailer axles
• Compatible with 12″ x 2″ Hubs and Drums: Ideal for use with inner bearings of 1-3/4″ ID

The following part numbers are considered equivalents or interchanges for this grease seal:

• Dexter: 01003600, 010-036-00
• Transcom: 22333TB

Why the Grease Seal Matters

A properly functioning grease seal is the gatekeeper of your trailer’s wheel bearings. Without it, grease would escape, and harmful debris, moisture, and dust could infiltrate the hub assembly. This infiltration leads to accelerated wear, compromised performance, and potential safety issues. A high-quality grease seal ensures:

• Reduced Friction and Heat: By maintaining lubrication, bearings run cooler and last longer.
• Extended Component Life: Proper sealing prevents costly, premature bearing and race replacements.
• Consistent Performance: Stable, well-lubricated bearings mean smoother, more predictable towing.

How to Replace a Trailer Hub and Drum Grease Seal

Note: Before starting any repair or maintenance work, make sure the trailer is parked on level ground, the wheels are chocked, and you are using appropriate safety gear (gloves, eye protection). Review your owner’s manual for specific torque values and any unique instructions related to your trailer’s make and model.

1. Remove the Wheel and Hub: Begin by loosening the lug nuts and lifting the trailer axle with a jack. Support the trailer using sturdy jack stands. Remove the wheel, then carefully slide the hub/drum assembly off the spindle. This will expose the inner bearings and the grease seal at the back of the hub.
2. Access and Remove the Old Seal: Use a wooden dowel or a non-marring tool to gently tap the inner bearing out from the opposite side of the hub. This action will push the old seal free. Take care not to damage the bearing or the hub surface. Once the seal is removed, wipe away any old grease and inspect the interior of the hub for wear or debris.
3. Clean and Inspect the Components: Now is an excellent time to clean the bearings, spindle, and inner surfaces. Check for signs of pitting, scoring, or discoloration on the bearings and races. If they are in good condition, replacing just the seal may be sufficient. If they show damage, further component replacement may be necessary.
4. Install the New Seal: Apply a light layer of fresh wheel bearing grease to the inner bearing and place it back into the hub. Position the new grease seal over the hub bore. Use a seal driver or a block of wood and a hammer to gently tap it into place, ensuring it’s seated evenly and flush with the hub surface.
5. Reassemble the Hub and Wheel: Slide the hub back onto the spindle, reinstall the outer bearing, washer, and spindle nut. Tighten the spindle nut according to the manufacturer’s recommended torque settings, usually involving a process of tightening, loosening, and retightening for proper preload. Replace the cotter pin and dust cap. Finally, remount the wheel and torque the lug nuts to specification.
6. Test for Smooth Operation: After lowering the trailer back onto the ground, give the wheel a spin by hand. It should rotate smoothly without excessive play or noise. Take a short test drive at low speed to confirm proper braking and handling performance.

Why Replace Just the Seal and Not the Bearings and Races?

If you’ve regularly maintained your trailer and the bearings show no signs of wear, simply replacing the grease seal can restore functionality without incurring the cost and complexity of swapping out bearings and races. Reasons to choose this targeted approach include:

• Cost Efficiency: Grease seals are typically less expensive than a full set of bearings and races.
• Time-Saving: Replacing only the seal is a quicker process, getting you back on the road sooner.
• Less Waste: If bearings and races are still in good condition, there’s no need to discard perfectly usable parts.

Reasons to Maintain a Good Grease Seal

A well-maintained grease seal helps you avoid problems such as:

• Overheating and Bearing Failure: Proper lubrication prevents excessive friction and heat.
• Contamination: Dirt and moisture infiltration can destroy bearings over time, reducing performance and increasing repair costs.
• Uneven Wear and Tear: Without proper sealing, bearings may wear unevenly, causing vibrations, noise, and handling issues.

Installation Tips for Best Results

• Use High-Quality Grease: Opt for a high-temperature, water-resistant wheel bearing grease that can withstand the rigors of heavy-duty use.
• Keep It Clean: Any debris introduced during installation can shorten the lifespan of your bearings and seal. Maintain a tidy work area and clean the hub thoroughly before reassembly.
• Follow Manufacturer’s Specifications: Adhering to recommended torque settings for spindle nuts and lug nuts ensures proper bearing preload and wheel security.
• Inspect Regularly: Even after replacement, schedule periodic inspections—annually or every 12,000 miles—to catch early signs of wear, contamination, or seal failure.
• Replace in Pairs: If one seal on the same axle shows signs of wear, consider replacing the other side’s seal too, maintaining consistency and reliability across your axle.

Long-Term Maintenance and Peace of Mind

Over time, even well-greased and sealed bearings may experience wear due to heavy loads, long trips, and challenging road conditions. By paying attention to the condition of your seals, bearings, and other hub components, you’ll maximize your trailer’s service life and ensure a safe, predictable towing experience. Regular maintenance and timely seal replacements mean fewer roadside breakdowns and a smoother journey for your valuable cargo.

Conclusion

The 5200 lb – 7000 lb Trailer Axle Hub and Drum Grease Seal is an essential investment in your trailer’s longevity, performance, and safety. By retaining lubricating grease and blocking harmful contaminants, this seal allows your bearings to operate at their best. Following proper replacement techniques, inspecting your hub components regularly, and adhering to maintenance best practices will ensure a trouble-free towing experience for years to come.