Rog Posted March 23, 2009 Report Share Posted March 23, 2009 Hi everyone; I've just stripped and cleaned the front hubs in preparation for new bearings and discs. The Bentley book (and others) talks about "partially filling" the hub with grease on re-assembly but I don't seem to be able to find a specific amount recommended anywhere. Now the void between the bearings is, I estimate, quite large even allowing for the stub axle and will consume a considerable quantity. Too much grease may not be quite as bad as too little but I'd be grateful for your interpretation of "partial". As always, my thanks in advance for any guidance. Rog Quote Link to post Share on other sites
foster461 Posted March 23, 2009 Report Share Posted March 23, 2009 Hi everyone; I've just stripped and cleaned the front hubs in preparation for new bearings and discs. The Bentley book (and others) talks about "partially filling" the hub with grease on re-assembly but I don't seem to be able to find a specific amount recommended anywhere. Now the void between the bearings is, I estimate, quite large even allowing for the stub axle and will consume a considerable quantity. Too much grease may not be quite as bad as too little but I'd be grateful for your interpretation of "partial". As always, my thanks in advance for any guidance. Rog Hi Rog, I asked this question recently and got a broad range of answers from none (waste of time, none of it will get into the bearings) to 1/4 full. In the end I used a bearing packer to fill the bearings, put a good sized dollop into the hub and half filled the cap. I figure any excess will find its way out and I'm monitoring things to see how it goes. Stan Quote Link to post Share on other sites
Rog Posted March 23, 2009 Author Report Share Posted March 23, 2009 Hi Rog, I asked this question recently and got a broad range of answers from none (waste of time, none of it will get into the bearings) to 1/4 full. In the end I used a bearing packer to fill the bearings, put a good sized dollop into the hub and half filled the cap. I figure any excess will find its way out and I'm monitoring things to see how it goes. Stan Well I'll be dolloped! Thanks Stan Quote Link to post Share on other sites
foster461 Posted March 24, 2009 Report Share Posted March 24, 2009 Well I'll be dolloped! Thanks Stan One other data point. When I pulled my front hubs off this winter the old grease in the hubs was as hard as a rock so I really dont think it was doing much good. I forget what the maintenance window is for these hubs but I'll be a lot more diligent in future when it comes to checking bearing end float and re-packing the bearings. Stan Quote Link to post Share on other sites
Rhodri Posted March 24, 2009 Report Share Posted March 24, 2009 Does anyone use anything other than LM, lithium grease, perhaps a synthetic type? Rod Quote Link to post Share on other sites
Rog Posted March 25, 2009 Author Report Share Posted March 25, 2009 Does anyone use anything other than LM, lithium grease, perhaps a synthetic type? Rod My bearings came as a kit complete with grease (LM) and the answer to the question "How much grease"? seems to be 40 grms (at least that was what was printed on the pack). Thanks to Stan and also Richard for his post last September regarding bearing adjustment. Test drive later today - whoopee. Rog Quote Link to post Share on other sites
david ferry Posted March 25, 2009 Report Share Posted March 25, 2009 I use Castrol BNS grease. David Quote Link to post Share on other sites
Rhodri Posted March 25, 2009 Report Share Posted March 25, 2009 David, that looks like one to try. Rod Quote Link to post Share on other sites
Mike C Posted March 25, 2009 Report Share Posted March 25, 2009 For the last 30 years I've used Castrol HTB.Its not soap based (it's bentone clay base -whatever that is) and rated to 200 degrees C.Temperature resistance has always been important to me with disc brakes. As you chaps probably aware-you cannot mix greases with different bases.I normally thoroughly clean the hubs and bearings,visually check the bearings and race surfaces for the minutest sign of cracking or scoring,then reassemble with working the grease through the bearings and adding enough extra grease to make sure the bearings run in grease but there is enough volume left to let the grease expand without being forced from the hub.In my experience when the hub is pulled down the next tme the excess grease appears to generally be where it was originally placed.So the excess really contributes nothing but peace of mind. Regards, Quote Link to post Share on other sites
Jersey Royal Posted March 25, 2009 Report Share Posted March 25, 2009 (edited) Hi When i fitted new bearings RTR recommended a synthetic grease called Amsoil. Very pleased with it, hasnt dried up. Cheers Guy Edited March 25, 2009 by Jersey Royal Quote Link to post Share on other sites
david ferry Posted March 25, 2009 Report Share Posted March 25, 2009 Guy, Which one? They have a number of different greases. AMS Oil is the manufacturer. Here's a link to their website synthetic grease section. David Quote Link to post Share on other sites
Jersey Royal Posted March 25, 2009 Report Share Posted March 25, 2009 Guy, Which one? They have a number of different greases. AMS Oil is the manufacturer. Here's a link to their website synthetic grease section. David Hi David, Will have to search the garage to find it, you know i have just cleaned it up so may take a while. Cheers Guy Quote Link to post Share on other sites
Alec Pringle Posted March 25, 2009 Report Share Posted March 25, 2009 I have on file from Castrol technical, not so many years ago, a suggestion for the use of APXT for wheelbearings - whereas for UJs and CVs their LMM was the preference. My understanding at the time was that the use of molybdenum disulphide greases in at least some types of wheelbearing applications could lead to a degree of skidding and consequent uneven wear. Cheers, Alec Quote Link to post Share on other sites
Jersey Royal Posted March 25, 2009 Report Share Posted March 25, 2009 (edited) David, Well found it, didnt take as long as i thought. It was supplied to me in a 226 gram squezzy tube. But is this one Synthetic Multi-Purpose Grease, NLGI #2 (GLC) http://www.amsoil.com/storefront/glc.aspx Cheers Guy Edited March 25, 2009 by Jersey Royal Quote Link to post Share on other sites
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