My 33121233303 Coupling HUB had a groove worn from the blue /inexperienced seal grinding towards it.
A scored floor on the hub is susceptible to brief seal life & causes lube leaks between remaining drive & swing arm.
There’s a SKF Speedi Sleeve restore for this hub journal , the place the seal rides.
This SKF 99111 is the closest sleeve obtainable , for journals 1.100 ~ 1.104″
Its a skinny wall stainless tube with a flange to permit driving it over the journal, and a chunk of tube/ mandrel to do the deed.
The inexperienced seal design itself is fairly compliant , and may enable a the slight OD enhance of the sleeve.
Oil the sleeve earlier than inserting it into the seal, twisting , ect, however nonetheless the primary time I put it in, the seal puckered and the spring popped off.
Be certain that the seal just isn’t botched , the spring is in place , you possibly can simply see in there.
Each different insertion went simply after the seal limbered up.
If the scores are deep sufficient , it’s potential that put on mark will ” print ” by the sunshine gauge metal sleeve, for a poor restore.
IN this case , SKF says coat the journal with crammed epoxy and drive on sleeve earlier than the epoxy units.
I put in this sleeve dry , its a lot tight and nonetheless have a reasonably simple choice to take away / substitute it if wanted.
I began to scrub up the rating marks off the hub journal, however Im not arrange to do this exactly ( lathe , cash , ect)
so I put in mine with about 1/2 the wear and tear seen above . I dont see an issue.
One potential error with sleeve restore is driving the sleeve to the fallacious depth.
I had supposed to drive the sleeve simply deep sufficient so the sleeve ‘s tapered finish would meet slightly below the place the hub’s taper finish stopped.
There’s loads of open area within the FD meeting to depart the flange on, btw , no obstructions there.
No actual cause to interrupt the flange off the place it’s scribed to permit that.
Since IME breaking off the driving flange can deform the restore, I go away the flanges on if potential.
ON this one, whereas driving it on ( its was a comparatively tight match… the hub journal OD is on the excessive finish of the sleeve vary
– so tight the driving flange was deforming …
I gave it yet one more teensy weeny hulk smash earlier than stopping to admire the outcomes ,
however the sleeve immediately gave method & bottomed out towards the hub cog portion.
What most likely occurred was , when sufficient of the sleeve cleared the journal ( there’s a diameter reduction there )
the driving drive required dropped. or dang I nonetheless Acquired It.
Both method, whereas its not unattainable to take away a mis-installed sleeve, however it’s costly … I feel this sleeve was ~$25 from rockauto
When you have been sensible , you’d put some sort of blocking shims earlier than driving the sleeve , to cease the sleeve depth with a pair mm to go.
However I am okay being fortunate;
I inked the sleeve and put in it by the seal for a pair spins,
and whereas its apparent that the seal lip will journey on an supposed / easy floor,
not by a lot ! and you may see stopping a couple of mm wanting full depth would have been ‘higher’.
