CURT Trailer Hub Bearing Protectors 2.44" Bore — 2-Pack with Snap-On Dust Covers, Grease Reservoir

CURT 22244 trailer hub bearing protectors are press-fit caps that hold grease and shield your 2.44" hub bearings from water, dirt and road grime, sold as a two-piece set with plastic dust covers.

Keeping trailer wheel bearings well-lubricated and free from contaminants extends bearing life and reduces the risk of noisy, overheating or premature failures while towing. The CURT 22244 protectors are designed to act as a small grease reservoir and a physical barrier for hubs with a 2.44-inch bore. They install by press-fit and include snap-on dust caps for added weather protection, making routine hub maintenance quicker and cleaner.

How do these protectors help my trailer bearings during towing?

The protectors provide a sealed chamber that supplies grease to the bearing and blocks mud, rain and road debris from entering the hub. That steady lubrication and contamination control lowers wear and helps bearings run quietly under load.

• Built-in grease reservoir maintains lubricant near the bearing surface.
• Durable metal protector sits inside the hub bore to reduce contamination.
• Snap-on plastic dust cover offers an extra barrier against moisture and grime.

Will these fit my trailer hub and how do I install them?

The CURT 22244 is sized for hubs with an actual 2.44-inch bore; measure your hub opening before purchase because axle or bearing size alone may not confirm fit. Installation is a press-fit process that requires a clean, undamaged hub bore and the correct tooling to seat the protector squarely without deforming it.

• Confirm the hub bore measures 2.44 inches for proper fitment.
• Clean the hub interior and remove corrosion or sharp burrs first.
• Press the protector evenly into the hub and top with the included dust cover.

How do I add grease and maintain the protector over time?

Grease should be added following your hub and bearing manufacturer's recommendations; the protector holds a small reservoir so periodic topping is usually sufficient. During routine inspections, remove the dust cap, check grease condition, reapply fresh bearing grease and reseat the dust cover to preserve protection.

• Use recommended wheel bearing grease and avoid overfilling the hub.
• Inspect for leaks, contamination or damaged seals during maintenance.
• Replace protectors if the press-fit is loose or the dust cover is cracked.

What’s included and what else will I need to complete hub service?

The package contains two CURT 22244 bearing protectors and two plastic dust covers; bearings, races, seals and other hub components are not included. To perform a proper hub service you’ll also need compatible bearings and seals, correct grease, and basic shop tools for disassembly and press-fit installation.

• Includes: two metal bearing protectors and two plastic dust covers.
• Not included: bearings, seals, hub assemblies and grease (order separately).
• Recommended: hub bore measurement tool, press or driver set, and manufacturer grease.

Who is this for? The CURT 22244 set is aimed at trailer owners, DIY mechanics and fleet managers who want a straightforward, economical way to protect 2.44" hub bearings from environmental damage while maintaining lubrication. It’s a practical upgrade for seasonal trailer prep, routine hub service, or anytime you’re rebuilding wheel bearings and want to add a grease reservoir plus dust protection for longer component life and quieter operation.