HoSS Posted October 26, 2016 Share Posted October 26, 2016 In my project vehicle i had to make up a spud shaft to link the merc gearbox to my Volvo transfer case. On that shaft i have to include the seal race, which has 2 seals on it. I could just machine the race from Stainless, or hard steel, but i'm worried about that grooving. So i was considering using a speedisleeve to get the hardness. I have never used one before.. In checking SKF's catalogue they seem to do a size that suits the diameter (44.95mm) 44,93 45,09 45,01 53,01 14,00 16,99 20,62 99830 or 45,01 53,01 14,00 16,99 20,62 99177 But they are too short. The width of the race needs to be about 20.5, as the 2 seals are separated by about 15mm. One sleeve is therefore too short and two would be too long. I imagine cutting one down would not end well? Possibly i could machine the excess of on a lathe once fitted, do you think? Any ideas? Any alternative suppliers of similar in a size that would suit? Quote Link to comment Share on other sites More sharing options...
GW8IZR Posted October 26, 2016 Share Posted October 26, 2016 I have trimmed one with a sharp pair of scissors, it has been in service a year or so with no problems. I worked in from the edge in a spiral cut and dressed it once fitted. Quote Link to comment Share on other sites More sharing options...
Cynic-al Posted October 26, 2016 Share Posted October 26, 2016 They are very thin. It would be like trying to cut a coke can neatly. However, would it matter if it was too long and would it matter if the trimmed edge wasn't perfect providing it wasn't touching the seal? Quote Link to comment Share on other sites More sharing options...
HoSS Posted October 26, 2016 Author Share Posted October 26, 2016 It cant be too long, as that edge of the seal way butts up against the bearing. I might get a few and try it. I imagine if i went in gently with a sharp point tool on the lathe i could part the end off. Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 26, 2016 Share Posted October 26, 2016 Stainless steel is not the material for seal lands, it's very good at galling. Quote Link to comment Share on other sites More sharing options...
Cynic-al Posted October 27, 2016 Share Posted October 27, 2016 Yes I think once it's on and held in shape it would cut ok if the shafts will go in the lathe. I guess you just need to think about where the join is between the two. Quote Link to comment Share on other sites More sharing options...
landroversforever Posted October 28, 2016 Share Posted October 28, 2016 On 26/10/2016 at 9:37 PM, vulcan bomber said: Stainless steel is not the material for seal lands, it's very good at galling. How is it going to gall on a rubber seal? Quote Link to comment Share on other sites More sharing options...
HoSS Posted October 28, 2016 Author Share Posted October 28, 2016 Oh it will over time, seal ways need to be really hard, chrome steel etc Quote Link to comment Share on other sites More sharing options...
landroversforever Posted October 28, 2016 Share Posted October 28, 2016 I appreciate they need to be hard not to wear but I can't see how the rubber seal is going to gall up. Quote Link to comment Share on other sites More sharing options...
HoSS Posted October 28, 2016 Author Share Posted October 28, 2016 SS is not that hard, once the polished surface has worn, friction will wear the seal rapidly. 1 Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 29, 2016 Share Posted October 29, 2016 Stainless steels very soft in reality, and it takes very little friction to tear it's surface and gall.... believe me, it's a cock up I've repaired many times at work. 1 Quote Link to comment Share on other sites More sharing options...
HoSS Posted October 29, 2016 Author Share Posted October 29, 2016 At the moment i've made a bearing race from chrome steel on the lathe and polished it, still pondering if that will be ok, or i will add a speedisleve later... Quote Link to comment Share on other sites More sharing options...
HoSS Posted November 4, 2016 Author Share Posted November 4, 2016 This is what i have for now. I've made the seal counterface from chrome steel, in theory it should be hard enough, if not i have the option to speedisleeve it later. Quote Link to comment Share on other sites More sharing options...
Davo Posted November 5, 2016 Share Posted November 5, 2016 That should be fine. I pulled apart an LT95 which had an output flange someone had chromed and it was in very good shape. I was going to get some other parts chromed because it seemed like such a good idea. Quote Link to comment Share on other sites More sharing options...
HoSS Posted November 5, 2016 Author Share Posted November 5, 2016 2 hours ago, Davo said: That should be fine. I pulled apart an LT95 which had an output flange someone had chromed and it was in very good shape. I was going to get some other parts chromed because it seemed like such a good idea. Its not chrome plated, its chrome-steel (sometimes called bearing steel) machined and polished on the lathe. Quote Link to comment Share on other sites More sharing options...
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