#Trailer spindle and hub upgrade

The grease cap is also metric, spares are very unlikely to be available locally. However, you can get the proper metric bearings online very reasonably, so there's no reason not to have a few spares on hand. The metric bearings and seals are unlikely to be in stock in most places, and expensive if they are, so if one goes bad on the road it could be more of a problem than with the US-spec hub. There's nothing wrong with the Harbor Freight hubs installed properly (cleaned and packed with grease before use according to the instructions), they'll give years and many miles of good service.

#Trailer spindle and hub upgrade

Great info.I am in process of putting my HF trailer together now, using specs for extended Dinoot (4 x 6), would it be a good idea to upgrade hubs now and include bearing buddies and oil seals ? Sounds like it may help reduce issues down the road. trailer seals are 1.98' OD, which right about 50mm, so you might want to replace the US-spec oil seal with a 50mm O.D./30mm I/D. sections for the oil seals, and the HF axles are 1.18' where the oil seals run (30mm), so the US-spec seals may or may seal well enough, depends on the particular seals. capacity HF frame has a much stronger tube axle.Д®dit: One more thing about putting US-spec hubs on the HF axles - the inner oil seals on the US hubs may not seal well enough on the HF axles, so you should check them when you're installing the hubs. Be careful about larger tires though, because the lighter capacity HF frames have sheet metal u-channel axles, while the 1720-lb. This means that the hubs I linked to above could be used to upgrade a 4-on-4 HF axle to a 4-on-5.5. trailer bearings won't fit properly in HF hubs.Д«TW, the HF 4-on-4 hubs and the 4-on-5.5 hubs both have bearings with 25mm I.D. The HF hubs have 12.5mm lugs.ДЄnd another benefit would be that you'd be able to pick up replacement bearings for the US-spec hubs anywhere, the metric bearings can be harder to find (and the metric outside diameter of the bearing is important for fitting it into the hub, US-spec 1' I.D. Swapping to the US-spec hubs has another benefit, it would get you 1/2x20 lugs, which are the same as the Wrangler. I wouldn't hesitate to use one of those hubs on a Harbor Freight axle based on my fit test. hubs can be bought complete with bearings/seal/cap/lug nuts for around $35, here's one. It's a very good fit, if you didn't know the Dexter bearings were 1' and the HF axle was 25mm, you'd never be able to tell when you installed the Dexter hub on the HF axle.ДЎ250-lb. bearings is on the HF axle the HF hub in on the floor. In the photo below a Dexter hub with 1' I.D. Because trailer bearings/spindles are designed for an easy slip fit, and because there's only one thousandth of an inch difference in the spindle diameters, hubs designed for 1' axles will fit very nicely on the Harbor Freight axles. The Harbor Freight spindle measures 0.979, which is only 0.001 less than the Dexter spindle. The spindles that came with the Dexter hubs measure 0.980 O.D. (each) hubs here, the bearings are 1' I.D. Here's a link to replacement bearings on amazon: The spec for the HF bearings is 30205 Taper Wheel Bearings, 25mm i.d.