The dimensions shown are in order of internal x external x width. These quality bearings will be supplied in KOYO, FAG, SKF, ZEN or NKE brands, all of which are highly regarded for their quality and longevity. These nitrile rubber sealed type provide excellent resistance to contamination of The raceways, and additional greasing is not required as they are pre-lubricated. Also known or searched for as: 69002rs / 619002rs