A few years ago, on a previous bike, I was cycling out in the countryside when I heard a whining, then a screeching noise coming from the front. It was the front hub. I had a wee tub of grease with me so I took the hub apart and gave it a quick clean and re-grease and it was fine. If I'd kept up with my routine maintenance, it would've prevented that.
Now, with a Exposure/SP dynamo hub, I can't do even preventative maintenance. It's running OK just now but what if it seized up out in the field, so to speak?
Dynamo hub bearings
Re: Dynamo hub bearings
yep there is not much you can do apart from
a) on some hubs with cartridge bearings you can get at the seals from the outside, pry them out and repack the bearings with grease
b)on ones where you cannot do this, all you can do is to squirt something (eg a semi-fluid spray grease) in the outside gap, in the hope that it might keep the seal lips wetted.
SP hubs appear to fall into the latter category.
cheers
a) on some hubs with cartridge bearings you can get at the seals from the outside, pry them out and repack the bearings with grease
b)on ones where you cannot do this, all you can do is to squirt something (eg a semi-fluid spray grease) in the outside gap, in the hope that it might keep the seal lips wetted.
SP hubs appear to fall into the latter category.
cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
Re: Dynamo hub bearings
Thanks Brucey. It's an Exposure version of an SP-PD8. I thought they had cartridge bearings but I may be wrong. What would be an appropriate semi fluid grease?
Re: Dynamo hub bearings
deffo cartridge bearings in that hub, as per the photo above (SP-PD8)
For lube, I'd suggest "carlube 100+ semi-fluid spray grease"; this falls into the 'might do some good, won't do any harm' category.
wipe away the excess once the solvent has flashed off. Other spray lubes are almost invariably either too thin to linger or or too thick to penetrate where they need too.
cheers
For lube, I'd suggest "carlube 100+ semi-fluid spray grease"; this falls into the 'might do some good, won't do any harm' category.
wipe away the excess once the solvent has flashed off. Other spray lubes are almost invariably either too thin to linger or or too thick to penetrate where they need too.
cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~