Quote:
Originally posted by strictlypersonl
There actually may be some disadvantage to having things exactly in line. Because there's no rotation of the bearings in the joints, the needles and cups may tend to fatigue earlier than if there was some motion, spreading the load out a bit.
|
Bob,
You are quite correct. You must have a offset in the shaft.
The best setup is parallel with a slight vertical or horizontal offset (2>5 degrees is recommended) as shown in the second image.
If the shaft is dead inline with no offset, you will rapidly brinell the bearings. The needle bearings need to move in the race.