Hi folks. We are beginning to stock LLU bearings (double lip sealed) for engines requiring sealed front bearings. So far we have 608-LLU and 6000-LLU for many Saito engines. We will be adding more as time goes on.
15th Jun 2019
I keep getting this nearly every day. People, if the thing between the inner and outer races of the bearing is metal, it is a shield, not a seal! There is a gap between the shield and inner race (about .005") otherwise you would have metal to metal contact. Sealed front bearings have rubber, Teflon, polyamide, or other flexible seals to keep lube in and dirt out. Except for a few particular cases, the front bearing does NOT seal the front of your engine! For most two strokes …
28th Dec 2018
I get questions occasionally regarding sealed vs shielded front bearings for engines. A well designed and machined engine will run quite well with a shielded front bearing. Most modern engines come that way nowdays. Occasionally, you can get an engine that is on the extremes of manufacturing tolerances, or where the crankcase has worn due to eating a lot of dust and dirt. For these engines, the fit of the crankshaft and case just isn't close enough to actually seal the cr …
18th Mar 2018