SKF Bearings

[brad890]

Thanks for the replies everyone.

 

Just got the bearings today. SKF was not available but got NTN which are apparently also good with the LLU seals.

 

Will update in a few months. 

[Skylark]

Just make sure the bearings are Japanese brand/made in Japan, Skf and bearing man also sell Chinese bearings for many of the sizes they stock, Chinese bearings worked perfectly in my hope hubs others bearly lasted a month in my pivot bearings, considering the savings from using non manufacturer branded bearings and the amount of labour fitting them its best just to always use the Japanese brand bearings.

 

Also seeing they have removable rubber covers its wise to fill the bearing with waterproof grease, definitely helps with durability in the long run.

 

Bearings come with a tiny amount of factory grease because if it's used in a high rpm installation, say in like a power tool, centrifugal forces will throw most of it out again, they leave it up to the end user to add grease as needed for the intended application.

[Larry King]

 

This guy explains some interesting facts about bearings.... hes pretty sharp.

[Skylark]

also another question , is it better to leave the good seals in the bearing and leave them alone or risk damaging them a bit to put in new grease every now and then ?

Open them up, factory grease in bearings is minimal, for an Mtb ideally you want them packed near fill with waterproof grease, especially pivot bearings. If you are careful the seals don't get damaged, I've yet to damage one, fabricate a little flat edged hook with a 90 degree bend to flip them out.