On the process of changing the output shaft bearings and seals on my Salisbury 4HU diff.
Bearings went in fine but having trouble with the seal (JLM1264)…
First try, the seal deformed and it’s ruined.
Any special tricks that I don’t know ?
The difference of the seal OD (68.8mm) and the case diameter (67.85mm) is about 1mm, and if it doesn’t go straight in from the beginning the seal is destroyed in the process (I don’t have a press).
So I have to get new ones and I was wondering if instead I could get Viton, but can’t find the right dimensions.
Anyone has done it ?
Does it have to be the metal only case or would a normal seal work as well ? (I don’t see why not…)
What I have found so far:
CR 18626 Nitrile - single lip (1.875x2.686x0.313 inch) is a perfect match.
CR 18652 Viton - single lip (1.875x2.75x0.313 inch) OD is 69.85mm - 2.75" , so it will either have to sit at the upper part of the case as it’s bigger, or it has to be modified.
The case has a “step”, at the bottom sits the seal and above it (larger diameter) sits the protective cover thing.