04-29-2012, 12:21 PM
Ed,
In terms of the dual seal I think just a back up in case one fails.
I have seen two seals used where the seals are packed with grease prior to installation the second seal helps to retain the grease for lubrication.
If the seals run without lubrication they die
DaveH
In terms of the dual seal I think just a back up in case one fails.
I have seen two seals used where the seals are packed with grease prior to installation the second seal helps to retain the grease for lubrication.
If the seals run without lubrication they die
DaveH