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Spiders and Joints
Posted by David Carment (more from David Carment) on Mon, 26 Nov 2001 22:55:24
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00 

I am in the midst of replacing the engine/transmission in my 84 SAAB. The 
new/rebuily engine is now bolted in but in the  process of re-fitting the 
passenger's side drive shaft one of the bearings on  the inner universal 
joint (spider bearing???) fell off -  scattering the needles and the races 
on the ground. I managed to locate all of the needle bearings and refit 
them ( with the help of a magnet).

Unfortunately two things happened in the process of rebuilding the bearing 
a) there are now more 'needles' than will fit in the bearing (approx. 8 or 
so) - does this mean: i) they came from another bearing? ii) were leftover 
from a previous R and R? iii) somehow fit into the bearing that fell off?

Second,   the inner and outer races seem to simply slide on top of the 
needles when they are packed into the bearing. Is this suppose to be a 
'pressure' fit or are the needles/bearing kept in place once inside 
the  inner driver by the races?

I have checked both Bentley and Haynes and both warn against the 
possibility of dropped needles and suggest that they can be repacked and 
held together with grease. Should I replace the bearing as a matter of 
course? If so do I need to buy the whole shaft or can I buy individual 
bearings?

Thanks for your help.

David Carment
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