Originally Posted by Machias
I've got the four rollers that I took off the trailer when I got it. I looked at the last night and I can modify them pretty easily and I think the will be perfect for the back.
Thanks everyone for the suggestions!!
I think those stepped rollers would work awesome on the back of your bunks.
Originally Posted by yesimapirate
Also, I can't tell from your pics if you have bearing buddies. If so, make sure you keep them packed with grease! If not, there's a fair amount of grease showing and I'd consider replacing the axle so you don't end up with a mess like I had.
Grease showing =/= replace axle!
All he needs is probably a new seal and maybe bearings. If you own a trailer, you should learn how to service your hubs.
Jack up your trailer and grab the tire and shake it hard. Is it loose or rattly, or tight and spin smoothly? If it spins smoothly and doesn't rattle, your bearings should be good.
Put on some latex gloves.
Pull the outer cap with a pair of slip joint pliers, pull the cotter pin, unscrew the bearing nut. (This will require a large socket, or use a hammer and screwdriver for a roadside repair!) The entire wheel and hub will come off. You will see two tapered roller bearings. The outer one was just behind the outer nut. The inner one will stay on the spindle or maybe be in the back of the hub. Have a clean piece of newspaper or plastic bag to set your wheel/hub on so the bearings don't fall in the dirt.
There will be an inner seal that slides on a smooth part of the spindle--the hopefully shiny part that is the end of your outer axle. If it is rusty like yesimapirate's, you need a new spindle or a new axle. If grease is coming out, it's only coming out one of two places--the outer cap or the inner seal. If it's the seal, the seal will probably be all cracked and dry. Pop it out with a screwdriver or punch and hammer. Take the seal and the bearings and wipe the grease off. Take them down to your local auto parts store and buy 3 sets. They can match the numbers off the seal and the bearings. Write the numbers down. Keep one for a spare under the seat of your tow rig. You will probably pay about $25 a set. Buy a tub of grease. If your spindle has grease zerks, buy a grease gun--if you can't first find one at a yard sale or 2nd hand store
and tube of grease for the grease gun that is the same as the tub of grease. Also buy a can of non-chlorinated brake parts cleaner. It will make cleaning up all the manky grease, dirt, dust, and grime a lot easier.
Once you get back home, drink a beer and pop the old races out of the hub. The bearings come in two pieces--the inner part slips in and rides on the spindle. The outer part is the race and it is driven into your hub. You will need a hammer and a punch to drive them out from the other side. Clean everything with the brake cleaner and an old rag. Put the new races in the freezer and leave the hub in the sun. The difference in temperature will make the race shrink and the hub expand, and it will be easier to put the new ones in. Wipe out any grease or mud. Use a brass punch or wood block to drive the new races in. You want to make sure they go in straight and not crooked. Use a wood block or smooth round pipe the same diameter as the outside of the seal to drive the seal into the back of the hub (the inside is rubber where it rubs on the spindle--the outside is a steel ring so it presses into the hub).
Put gloves on both hands. Grab a big dollop out of grease and work it in among the bearings. This is called "packing" the bearings. You want the bearings completely full of grease. Put some grease behind both bearings in the hub, and between the bearing and the seal.
Slip the hub back onto the spindle. Put the nut on and crank it tight, spinning the wheel as you tighten it. Tighten until the wheel stops spinning, then back the nut off until the hole lines up and you can put a cotter pin in. Bend the cotter pin leg up so it doesn't come out.
If your spindle has a grease zerk, pump grease into it with a grease gun until a little grease comes out from behind the back seal.