The Triumph Dolomite Club - Discussion Forum

Quick question...

Having cleaned up the front hubs and removed all of the old grease and muck, how much fresh grease should there be in the hub ?

Thanks, Richard

RichardHyde wrote: ↑Tue Jan 14, 2020 8:54 am Quick question...

Having cleaned up the front hubs and removed all of the old grease and muck, how much fresh grease should there be in the hub ?

Thanks, Richard

A difficult one this, there's no stated amount, it's pretty much a judgement call.

I go about halfway between a thin coat and packed solid, it's worked for me all these years!

Having new grease of a decent spec is probably more important than the exact amount!

Steve

if your using new bearings or even old good useable ones,spend time on getting grease in the bearing itself! pack the bearing thoroughly...main thing is the bearing not the hub

Indeed, the hubs don't need grease, the bearings do.
But as above, packing teh bearings is the important bit. I don't think grease escapes (unless you seriously overheat the brakes, seen that going down Stelvio with an Auto Stag, pretty scary. Lost most of the brakes) But I a,ways chicken out and have a ring of grease behind the bearings.

I suggest you have a read of the advice provided on the SKF bearing site. Below is an extract from the site

Initial grease fill
Super-precision bearings operating at high speeds should have less than 30% of the free space in the bearings filled with grease.
Open angular contact thrust ball bearings for screw drives should be lubricated with a grease quantity that fills ~ 25 to 35% of the free space in the bearing.

Freshly greased bearings should be operated at low speeds during the running-in period (→ Running-in of grease lubricated bearings.) This enables excess grease to be displaced and the remainder to be evenly distributed within the bearing. If this running-in phase is neglected, there is a risk that temperature peaks can lead to premature bearing failure.

in that case,,,do what SKF say