RC they purty small, Trainin size I'd reckon? :laughing
If you have the Gold system on your Ally/Boatmate trailer then the bearing/hub cover is the standard 1.98" so a standard Bearing Buddy Bra from Wallyworld will fit over the inspection window. I've had a set on mine from day one, I forgot where I read the recommendation but it puts one more layer of protection over the cap.
Knock on wood I haven't had any problem after that one wheel in '09. I think I'll drain & refill mine tomorrow just because its been since '09 since I drained them all & refilled them. Earlier this week I saw the example of a "system failure" of a Gold system. A good bud of mine has an '04 22ft Bryant with a Boatmate. He owns a house on the TN River with a ramp in the neighborhood so he rarely puts the rig on the road. But he wanted to have the boat detailed here in Jackson (an hour from the river) so he pulled it home. The left rear hub cover came off & of course the 50W oil lasted no time. By the time he got home that hub & spindle was TOAST! Being in a hurry for the weekend & the trailer being a torsion axle, he had to order a complete torsion arm, spindle, bearings, hub...the whole enchilada. That's the reason I DONT like the oil bath units, you lose the hub cover while on the road & you have only a couple of minutes or miles at most before a catastrophic failure is imminent! I've lost several grease caps over the years, just put some more grease in them, a new cover & Rock & roll!!!
UFP knew the Gold was a POS & most quit using it after only a couple, few years so they released the Vault system which uses 90W gearlube. I'm curious how long that would last on the hiway
without a cover?