andyb Posted October 14, 2008 Share Posted October 14, 2008 Firstly I know how you set swivel pre-load on an LR axle, but.... ...if you have a wheel that has, for instance, twice the off-set of a factory fit wheel; so therefore the scrub radius (?) is twice that of a standard wheel does the preload 'scale' similarly. In other words, in the above example would the pre-load have to be twice as much? Or does anyone have an idea of how the pre-load would be affected to retain as near as normal steering feedback. I hope that makes sense. Quote Link to comment Share on other sites More sharing options...
ciderman Posted October 14, 2008 Share Posted October 14, 2008 Good question Andy , Not sure of sure answer ,but wouldnt adding too much pre-load put an increasing load on the bearings . which could cause them to rutt . Quote Link to comment Share on other sites More sharing options...
dollythelw Posted October 14, 2008 Share Posted October 14, 2008 I'd agree with Ciderman - bearing load will increase with offset but preload adjustment is merely slop erradication Quote Link to comment Share on other sites More sharing options...
tacr2man Posted October 14, 2008 Share Posted October 14, 2008 You say the offset is a lot more but what about the rest of the wheel, is it a 6" rim or a 10" rim ? Having said that, as mentioned, increasing the swivel bearing preload is goingto affect other things as well eg loads on steering track rod ends . I would be very cautious on changing reccommended specs. JMHO Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted October 14, 2008 Share Posted October 14, 2008 Too much preload will destroy the swivel taper roller bearings. OTOH most of the destroyed ones I have seen are damaged by too little preload which Brinells the bearing tracks. Quote Link to comment Share on other sites More sharing options...
Turbocharger Posted October 14, 2008 Share Posted October 14, 2008 If you increase the scrub radius AND the tyre size, the centre of rotation in the contact patch (which is how you 'feel' steering feedback) will be about the same, so no need to alter the swivel preload. Given that we're not looking at a fingertip Lotus Elise experience, I'd stick with standard settings. Quote Link to comment Share on other sites More sharing options...
andyb Posted October 16, 2008 Author Share Posted October 16, 2008 Thanks for advice and thoughts. I'm going to stick with the 'factory settings' Quote Link to comment Share on other sites More sharing options...
Sabre Posted October 16, 2008 Share Posted October 16, 2008 Thanks for advice and thoughts. I'm going to stick with the 'factory settings' And that is ? I am in the process of renewing swivel bearings on my Disco TDi. Checked all my back copies of LROI, and they have given settings on a few occasions. But they vary ! Even the ones that stipulate a setting with the seals in place, differ So, I used the setting in the Heynes manual. Which is 1.5 kg, with the swivel assembly lying on the floor, seal removed, and pulling upwards. (Yes, I take it they compensated for gravity ) Quote Link to comment Share on other sites More sharing options...
ciderman Posted October 16, 2008 Share Posted October 16, 2008 I have always set them up with the seal removed, I think thats the general way of doing them Quote Link to comment Share on other sites More sharing options...
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