Quick answer
Repack travel trailer and fifth wheel wheel bearings once a year or roughly every 10,000 to 12,000 miles, whichever comes first, and before the first big trip after a storage season. A repack means pulling the hubs, cleaning and inspecting the bearings and races, replacing the grease and seals, and setting preload, which is why pumping grease through a lube axle fitting is maintenance between repacks, not a substitute for one. Skipped bearings fail hot: the warning signs are a hub too hot to touch, humming or grinding that changes with speed, and grease slung on the wheel's inner face.
Wheel bearings are the least glamorous parts on a towable and the only ones that can end a trip on the shoulder of an interstate with a wheel sitting in the median. They’re also the most skipped maintenance item in RV ownership, because a bearing that’s fine today feels exactly like a bearing that will fail in 400 miles. Here’s the schedule, what a real repack involves, and the failure sequence you’re preventing.
The schedule
Annually, or every 10,000 to 12,000 miles, whichever comes first. For most owners that’s one repack a year, and the natural slot is the edge of storage season: either going in, so the axles sit on fresh grease all winter (it’s step four of the storage prep checklist), or coming out, before the first long tow of spring. Rigs that sat for multiple seasons without service move to the front of the line, because grease separates and seals dry out while parked; sitting is not resting, for bearings.
Heavier use shortens the interval: full-timers and long-haul snowbirds should think in miles, not calendar.
What a repack actually is
The word matters because there are two very different services sold under “bearing maintenance.” A repack is a teardown: hubs off, bearings and races out, everything cleaned in solvent and inspected under good light for pitting, bluing, and wear tracks, bearings hand-packed with fresh grease, new seals, reassembly with correct preload. The inspection is the point: it’s the only moment anyone actually sees the condition of the parts carrying your rig.
Pumping grease through a lube-axle fitting is the other thing, and it’s genuinely useful between repacks: it pushes fresh grease through the hub. What it can’t do is inspect anything, and what it can do, overdone, is blow out the rear seal and push grease onto your brake shoes, trading a bearing problem for a braking one. Fittings supplement the annual repack; they don’t replace it.
The failure sequence you’re preventing
Bearing failure is a cascade with polite early warnings and a violent ending. It starts as grease breaking down or moisture intrusion, becomes metal-on-metal wear, and announces itself as heat: a hub noticeably hotter than its neighbors at a fuel stop (the flat-palm check at every stop is the single best habit in towing). Next comes sound, a hum or growl that rises with speed, then play and wobble. Ignored past that, the bearing welds itself to the spindle or disintegrates, and the outcomes range from a destroyed spindle (an axle repair, days and real money) to a wheel separation at highway speed, which is the scenario everything above exists to prevent.
The repack costs $179. The spindle costs a trip. The wheel costs more than that.
The easy version
A Whaleshine technician repacks at your driveway or storage lot, priced upfront, with the inspection photographed into your rig’s service record so you see exactly what your races look like and have a dated baseline for next year. It’s bookable solo or stacked with winterization on the same visit for travel trailers and fifth wheels, and the annual reminder is automatic. Boring axles, which is the goal.
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Common questions
What does a bearing repack actually include?
Hubs come off, bearings and races come out, everything gets cleaned and inspected for pitting, discoloration, and wear, new grease is hand-packed into the bearings, seals are replaced, and the assembly is reinstalled with correct preload. Worn parts get flagged for replacement.
My axles have grease fittings. Do I still need repacks?
Yes. Lube-style axles push fresh grease through the hub, which is useful between services, but they don't let anyone inspect the bearings or races, and overpumping can blow the rear seal and push grease onto the brakes. Annual teardown inspection is still the standard.
What are the signs a bearing is failing on the road?
A hub noticeably hotter than its neighbors at a fuel stop, a hum or growl that rises with speed, wobble you can feel in the tow, or grease slung across the inner wheel. Any of these means stop towing and get it inspected before it becomes a spindle or a wheel.
What does a professional repack cost?
Whaleshine bearing repacks start at $179 for most towables, done at your driveway or storage lot, with a deposit to book and the balance paid directly to your technician. Worn parts found during inspection are documented with photos in your service record.
