AB Tools Replacement Dust Cap Wheel Hub Trailer Bearing Grease Cover - 2 Pack

A pack of two 52mm metal trailer hub caps. These are designed for internal fit, slotting into the ...

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B&QB&Q - 2 Pack Replacement 52mm Dust Cap Wheel Hub Trailer Bearing Grease Cover
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eBay2 PACK Replacement 52mm Dust Cap Wheel Hub Trailer Bearing Grease Cover
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Product Information

Full details

This guide is for trailer owners needing to protect their wheel bearings. The AB Tools 52mm metal trailer hub caps offer a durable, internal-fitting solution to prevent dust and grit ingress, significantly extending bearing life. A key caveat is ensuring your hub requires a 52mm internal diameter for a proper fit.

All features

Model Part NumberIND104_2pk
BrandAB Tools

Extended Product Information

FAQs

What does 'internal fit' mean for these hub caps?

Internal fit means the hub cap slots *into* the hub opening from the inside, rather than fitting *over* the outside of the hub.

How do I measure the correct size for my trailer hub?

Measure the inside diameter of the hub opening where the cap will be seated. For this product, the required measurement is 52mm.

Can I use these on a car wheel hub?

These are specifically designed for trailer wheel hubs. Car wheel hub sizes and designs vary significantly, so these are unlikely to be a suitable fit.

How many hub caps are included in this purchase?

This listing is for a pack of two (2) metal trailer hub caps.

What is the benefit of zinc plating?

Zinc plating provides a protective layer that resists corrosion and rust, extending the life and appearance of the metal hub cap, especially in damp or exposed conditions.

Will these caps prevent all water from reaching the bearings?

These caps provide a significant barrier against dust and water. However, for complete waterproofing, especially during submersion, specialized waterproof hubs or additional sealing methods may be required.

Troubleshooting

Hub cap does not fit

Verify that your trailer hub has an internal diameter of exactly 52mm. If the hub is slightly larger, the cap may not seat properly. If the hub is smaller, do not force the cap as it could cause damage.

Hub cap is loose

Ensure the hub opening is clean and free of grease or debris that might prevent a tight seal. If the hub opening is slightly worn, consider using a small amount of RTV sealant for a more secure fit, though this may make future removal difficult.

Signs of rust appearing

Minor surface rust on the zinc plating can often be cleaned with a metal polish. If the rust is severe or the metal is significantly corroded, the cap may need to be replaced to maintain bearing protection.

Pros and Cons

Pros

  • Effectively shields wheel bearings from contaminants.
  • Durable steel construction ensures a long service life.
  • Zinc plating offers superior rust and corrosion protection.
  • Internal fit design provides a clean, integrated look.
  • Cost-effective solution for maintaining trailer safety and performance.

Cons

  • Requires a specific 52mm internal hub diameter.
  • Not suitable for hubs requiring an external fitting cap.
  • Metal construction can potentially rust if plating is severely damaged.
  • Requires manual installation and removal.

Setup, Compatibility & Care

Compatibility: These hub caps are designed for trailers with a wheel hub that has an *internal diameter of 52mm*. They are intended for an internal fit, meaning they push into the hub opening. Always measure your hub's internal diameter before purchasing to ensure a correct fit.

Setup:

  1. Ensure the hub opening is clean and free of debris.
  2. Gently tap the hub cap into the 52mm internal opening of the wheel hub. It should fit snugly.
  3. You may need a rubber mallet or a block of wood and a hammer for gentle persuasion, being careful not to deform the cap.

Care:

  • Periodically check the hub caps for damage or signs of rust.
  • If the trailer has been submerged or driven through heavy mud, inspect the seal around the hub cap.
  • Clean with water and a mild detergent if necessary. Avoid abrasive cleaners that could damage the zinc plating.

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