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Boat trailer bearings, hubs, and springs are critical components that ensure your trailer rolls smoothly and safely. Proper selection and maintenance of these parts can prevent costly breakdowns and potential hazards on the road. Investing in quality components means peace of mind for every journey.
【Fit】for 3500lb trailer axle 1-1/16'' to 1-3/8'' #84 spindles.
【What You Get】2 sets of trailer bearings kit, total 20PCS parts, including 2 X Inner Bearings, 2 X Outer Bearings, 2 X Inner Races, 2 X Outer Races, 2 X Grease Seals, 2 X Spindle Nuts, 2 X Dust Caps, 2 X Rubber Plugs, 2 X Washers, 2 X Cotter Pins...
【Quality Materials】These trailer parts are made of high quality chrome steel and NBR rubber, sturdy & durable, precision bearing manufacturing, low wear, low vibration and low working noise.
【Grease Seal】Made of NBR rubber and steel, double lip design, high elasticity spring, no leakage.
[Quick & Easy Installation] Our trailer wheel bearing kits are designed for a hassle-free setup, saving you time and effort
[Premium Materials] All trailer parts are built from top-tier, durable, and reusable materials. Experience faster, quieter performance for a smoother, more enjoyable ride
[Smooth and Silent Performance] Precision-crafted bearings for ultra-quiet operation. The leak-proof, double-lip grease seal guarantees a clean, maintenance-free experience. Built from top-quality materials, all our boat trailer parts are made to last
[Fits for] Trailer axle hub wheel for 1-3/8'' to 1-1/16'', 3500 Lbs Trailer Axle
【APPLY TO & SIZE】- Fits 3500lbs Trailer 1-1/16'' to 1-3/8'' Axles (#84 Spindle EZ-Lube Axle), not for straight spindle. Dust cap (O.D: 1.98''), L44649 outer bearings (I.D: 1-1/16''), L68149 inner bearings (I.D: 1-3/8''), Grease seals (2.56" O.D...
【WITH EXTRA 2 DUST CAPS & 4 SEALS】- You will receive 2 sets of 5x4.5'' trailer hubs and all the hardware parts you will need, you don't have to go anywhere else to buy parts. Our kit also comes with extra 2pcs dust caps & 4pcs rubber plugs, can be...
【BOLT PATTERN】- 5 on 4.5'' bolt pattern idler hub with 1/2”-20 studs and bearing races installed.
【HEAVY DUTY & ANTI-RUST】- These hardware are made of high quality steel and rubber, strong and durable. Wheel hub surface with black coating, and dust cap surface zinc-plated, anti-corrosion & anti-rust, long-term service for your trailer.
FREEZE FOR EASY INSTALLATION: The caps press tight against the hub by design. If installation feels difficult, place them in the freezer for 20 minutes first. Cold contracts the metal slightly for a clean press-on fit with no damage to the bearing.
SPRING-LOADED PRESSURE KEEPS BEARINGS LUBRICATED: The internal spring maintains steady pressure on the grease, pushing it continuously against the wheel bearing. No dried-out bearings and no metal-on-metal wear between maintenance intervals.
FOR BOAT TRAILERS AND UTILITY TRAILERS ONLY: Fits 1.98 inch axle hubs on boat trailers, utility trailers, and other trailered equipment. Not designed for passenger vehicle wheel hubs. Measure before purchasing to confirm 1.98 inch outer diameter.
MARINE-GRADE CARBON STEEL WITH CHROME COATING: Built for saltwater and freshwater trailer use. Chrome coating resists corrosion from road spray, boat ramp exposure, and prolonged outdoor storage. Each kit includes 2 grease caps and 2 dust cap covers.
PRE LUBRICATION: The bearings and grease seals are pre-assembled and lubricated with grease. This 4 on 4 trailer hub kit includes all the necessary parts for installation, you can directly install them on the trailer axle.★2000lb Trailer Axle hub kit...
4×4" Trailer Hub FIT: This trailer hub fits 2000 lbs Trailer 1'' Straight Axles EZ-Lube BT9 Spindle, not for tapered spindle. Fits L44643(for 1") outer and inner bearings.(The trailer hub has been pre-installed with bearings, has been lubricated with...
Rugged and Rust-proof: These hardware are made of high-quality steel and rubber for excellent strength and rigidity. Trailer wheel hub surface coated with black coating, beautiful and anti-corrosion, high bearing accuracy, low friction, low noise. Make...
PROTECT YOUR INVESTMENT - Whether it’s a boat, camper, or utility trailer, our Bearing Buddy prevents wheel bearing failure. Keeps water and dirt out of hubs and bearings. Paired with the Bearing Buddy Bra, which keeps grease out of your wheel and adds...
AUTOMATIC PRESSURE RELIEF - Engineered with a self-regulating pressure system, our trailer bearing dust cap releases excess grease. This bearing cover protects seals and bearings from damage while maintaining optimal hub lubrication
KEEPS GREASE IN & WATER OUT - Our wheel bearing caps for trailers use a spring-loaded piston to maintain safe 3 psi pressure, keeping grease in and contaminants out while preventing overpressurization that could damage the inner seal
QUICK & SIMPLE INSTALLATION - Measure for proper fit, then tap the Bearing Buddy into the hub using a wood block and hammer. No special experience needed. If the wheel bearing protectors don’t fit securely, stop and contact Bearing Buddy
Last update on 2026-10-14 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Boat Trailer Bearings, Hubs & Springs
Maintenance and Installation Tips
Regularly inspect bearings for signs of wear, such as pitting or discoloration. Repack bearings with marine-grade grease at least annually, or more often if frequently submerged. Check that hub caps are properly sealed to prevent water intrusion. When replacing springs, ensure you have the correct type and capacity, and that they are installed securely to prevent bouncing or failure. Always follow manufacturer guidelines for torque specifications when reassembling hubs and wheels.
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