Oil Hubs VS Grease Hubs on trailer

I thought all semi hubs were oil bath.
Only grease hubs I’ve ever seen is in light duty trailer applications.

 

I don't know why anyone would ever choose oil hubs over grease hubs. I've never seen a grease hub that seeped, but plenty of oil hubs do.

 

I'd much rather deal with oil bath bearings than grease. #### cleaning out and repacking that ####. Set the bearings, fill the hub and boot it out the door.

 

I usually agree with you on most things that I see you post but. I got to go with grease hubs on this. I've never even had to repack any of my grease hubs. But usually on the second set of brakes on one of these RGN were always putting new seals in them on the oil bath ..

 

If you're pulling your own trailer, grease is the way to go. You have multiple O/O's/company trucks dropping and hooking, oil is better. At least they will sometimes notice the oil on the wheel/ground.

 

Grease hubs if the trailers sit for long periods of time. If you’ve ever pulled apart hubs and noticed the top part of the bearings and races are corroded or discolored you’d know why. The oil settles to bottom and leaves the top side of hub and bearing exposed to moisture and rust will form pitting the polished surfaces. Grease will not.
You can still do grease steer axle hubs.

 

Latest truck I just ordered has grease hubs on the front steering axle. That was unexpected. I suspect everything is going to grease. All the trailers I have bought new in the last 5 years have been grease, just my older trailers that are oil and my 2019 truck has oil on steer axle.

 

You won't find grease hubs in the far north. At 40 below it's like glue if they are parked for longer than a few hours. Loaded, you're stuck. Empty...you're dragging tires if you can get rolling.