How often should the bearings be greased? I generally will put a couple of shots about every other trip. I definitely do not want to over grease and create more problems.
I pump mine 2x a season. With EZ lube axles it is nice and clean. I would go out on a limb and say you could probably get away with doingit only at the beginning of the season if you don't tow cross country.
1) Wipe out old grease
2) Pump in fresh grease until it oozes out and recap.
Dexter says once a year, even with the EZLubes -- Some folks do every other year, some have gone a number of years -- Ya pays yer money and ya takes yer choice!
Whatever you choose, it's a good idea to get in the habit of checking hubs and tires for excess heat every time you stop so as to nip trouble in the bud -- Either by hand or by Infrared Thermometer -- If you get in the habit, you will know instantly when something is hotter than normal for the existing conditions.
Our trailer is only a year old travel wise and estimating about 4000 miles on it. I'm having the bearings pulled, inspected and repacked this Tuesday at a local Brake and Tire Shop that still does Wheel Bearings and especially on all sorts of trailers. Approx. $140 to have it done.
Just getting some peace of mind before the big trip next month. Heard too many say on here about some units coming off the lines with little grease in them. The Shop just told me yesterday he did a new Horse Trailer this week, and that on one bearing it didn't have enough grease to cover the palm of your hand. Glad I decided to get them checked out so I have a solid reference point from when I know it was done properly.