Keep your trailer rolling safely with a fresh bearing race. The Lippert 125102 is a precision steel replacement race that serves double duty -- it functions as the inner race on 2,000 lb axle hubs and as the outer race on 2,000 to 3,500 lb axle hubs. Industry best practice is to replace the race and bearing cone together every time you repack or service your wheel bearings. Never seat a new cone on a worn race.
The Lippert 125102 uses the industry-standard L44610 dimensional reference, making it a direct fit for a wide range of single-axle and tandem-axle trailer setups in the 2,000 to 3,500 lb capacity range. Whether you are refreshing a utility trailer hub, a small travel trailer, or a lightweight toy hauler axle, this race matches the geometry your bearing cone requires for proper load transfer and heat dissipation.
Bearing races are press-fit into the hub bore and provide the hardened running surface that the tapered roller cone rides against. A pitted, spalled, or blued race will destroy a new cone in short order. Replacing both components at the same service interval is the only way to ensure a reliable, long-lasting wheel bearing assembly.
Works as the inner race on 2,000 lb hubs and as the outer race on 2,000-3,500 lb hubs -- one part covers multiple positions.
Matches the L44610 industry reference number, making cross-referencing to other bearing brand equivalents straightforward.
Lippert strongly recommends replacing the race and cone together. Pair this race with Lippert bearing cone part 122089.
Backed by Lippert's limited 1-year manufacturer warranty for peace of mind on the road or at the campsite.
Tapered roller bearings work as a matched system. The cone (inner race assembly with rollers) and the cup (outer race) share a precision-ground taper angle. When wear, corrosion, or heat damage the cup surface, no amount of fresh grease will protect a new cone riding against uneven metal. The result is accelerated wear, heat buildup, and in severe cases, wheel separation.
Replacing the Lippert 125102 race at the same time as the cone -- typically every 12,000 miles or at any sign of surface damage -- is the correct approach and aligns with Lippert's published axle maintenance guidelines.
A new cone seated against a worn race will fail prematurely. Order Lippert part 122089 (bearing cone) alongside the 125102 race to complete a full bearing service on one hub position.
This listing is for the bearing race (cup) only. The bearing cone is sold separately -- see Lippert part 122089. Grease, grease seals, cotter pins, and lug nuts are not included.