I replaced an axle on another trailer for basically the same price in canadian dollars. The 2000lb axle, EZ lube hubs, and spring kit, custom made for my trailer, was just over $200 canadian. Also from EASTONS on hwy 115 north bound. I've had tons of trailer work, and purchases from them over the years, and they have always gone out of their way to make things right. Also have a 6x10 galv. landscape trailer they built for me. The thing is a beast. Not a single issue with it in 12 years just replace tires, inspect bearings once in a while, and giver.
I've been lucky to never have a trailer problem while on the road, my whole life (i'm sure I just jinxed that). Never a bearing failure, never a tire blow out, nothing. Lucky....probably.....preventative maintenance? Absolutely.
The most common problem I see on A LOT of trailers is the inside seal blown out, because of bearing buddies. The trick I was taught by a bearing guru is just look at the inside seals on the back of the wheels. If no grease is leaking out, no water can get in, so the bearings are fine. There is NO NEED TO ADD GREASE to a bearing that's not leaking out grease. Just resist the urge to pick up the grease gun and give them a shot of grease. They don't need it. Keep your seals in tact, and drive it like you stole it.
S.