06-09-2023, 01:07 AM
(This post was last modified: 06-09-2023, 01:21 AM by Tony Press.)
(05-09-2023, 01:17 PM)Denis Sweeney Wrote: Thanks guys they have not been cleaned up and there is fairly hard grease in some.
Does the OOO have any meaning? I saw in the Companion reference to O and OO fit on Hoffman bearings so is OOO another fit?
I have a crankcase I purchased at Moreton that has had the front bearing housing repaired and it is marked “narrow bearings” on both front and rear repair plates.
Does this mean I need specific bearings, sorry if this is a dumb question, but I need to ask
Cheers again
000 is C3 internal clearance or internal clearance greater than normal.
If used on the rear main bearing with a very firm fit on the crankshaft it should be ok if not a bit more rumble from the rear.
(05-09-2023, 01:17 PM)Denis Sweeney Wrote: Thanks guys they have not been cleaned up and there is fairly hard grease in some.
Does the OOO have any meaning? I saw in the Companion reference to O and OO fit on Hoffman bearings so is OOO another fit?
I have a crankcase I purchased at Moreton that has had the front bearing housing repaired and it is marked “narrow bearings” on both front and rear repair plates.
Does this mean I need specific bearings, sorry if this is a dumb question, but I need to ask
Cheers again
As mentioned the Austin 7 Angular Contact pair have narrow outer rings- in earlier crankcases two 30 thou washers were fitted but later the housing depth was reduced. (refer Woodrow)
We have pairs of standard AC bearings machined to suit.
Unfortunately these are not matched pairs but usualy a pair of unmatched bearings can be used as a pair although I recently found one pair for the differential required an 8 thou spacer.
When mounted as a pair the outer rings must be in contact but not difficult to rotate
Unlubricated bearings should never be spun.