Originally Posted by
WizardOfBoz
It seems to me that one can find ABEC 3 R6 LLB, or ABEC 5 SRS. Both LLB and SRS seals are find for bike purposes, so the SRS (providing they're actually the ABEC 5) are an upgrade.
I'm a bit confused, though, about how you found out that they're filled with "crappy white grease". Aren't they sealed on both sides? The LLB seals have a steel ring inside them, and the SRS have a metal ring on the outside. How did you assess what grease was in the bearing? Did you remove a seal? Or are these only shielded on one side?
In any case, if it is the specified grease (Nye Rheolube 374b), it's actually an exceptionally good grease used in machine tools and elsewhere in high temp, high speed applications.
My mistake, after another inspection they are 2RS not SRS, or that is what it says on the seal. So, I'm guessing that 2RS and LLB are the same thing? If that is the case, then why two different annotations for the same thing? The seals are blue in colour. Yes, I removed a seal.
There is no metal snap ring on top of the seal. There is a metal ring within the seal itself and it also seems to have two lips on the inner and outer circumferences of the seals.So, after all that. I guess I have ABEC 3 R6 LLB although the seal is stamped 2RS. Thank you for clarifying a few things for me.