Pages

May 1, 2013

Repack RV Wheel Bearings

I know this is a messy job, but this maintenance can save you big bills later.  Over time the grease breaks down and your trailer's weight rides on the wheel bearings.  It is very crucial to keep them well lubricated for safe travels.

Listen to your bearings.  They will normally whine and grind before they fail.  Unnatural sounds that vary depending on speed often indicate your bearings need attention.  

Tips:

  • Don't reuse cotter pins
  • Use high temperature wheel bearing grease.  (All grease isn't compatible among brands.)
  • Thoroughly clean all old grease from bearings, races and hub cavities.
  • Service wheel bearings annually or every 10,000 miles, whichever occurs first.
  • While performing bearing maintenance inspect them carefully.  If you see nicks or discoloration on the bearings or races replace the inner and outer bearings and races on both sides of the axle.
  • Once the hub, bearings and thrust washer are in place, snug up the castellated spindle nut while spinning the drum to seat the bearing.  Back off the nut a turn then re tighten it to about 50 ft-lb while spinning the drum.  Back the nut off 1/4 turn. Fine tune the position of the nut to align it closest to the recesses with the cotter pin hole, or lock the nut in position with the existing tanged washer or cage style retainer.

If you have an Airstream trailer, they recommend Valvoline Crimson Grease.  If you are looking for bearings or races for your Airstream trailer, call Bates RV and speak with their parts department.  They can get you the correct parts listed below.


Models- All

Bearing and Seals  0" Brakes - Prior to 9/15/1971

Bearings
Outer 680380 
Inner 680381 
Inner Race 680385
Outer Race 680387

Grease Seal 680387 

10" Brakes - After 9/15/1971

Bearings
Outer 680380 
Inner 685016 
Inner Race 685017 
Outer Race 680387 

Grease Seal 680387 

12" Brakes - Has not changed. Remained the same from late 1960's to Present

Bearings
Outer 450658
Inner 450659 
Inner Race 680364 
Outer Race 680365 

Grease Seal 680370-100 

No comments:

Post a Comment