ABEC3 Rate. Noise Level Reference (SKF 2RS1,FAG 2RS,FAA PP,TORGPP,KOYO2RS,NACHI2NSE,NSKDDU, NTNLLU). BearingType (Ball Bearings -Deep Grove - Radial Bearing). 2 SIDes Rubber Seals. Self lubricated (Grease ).
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