GW211PP25, DC211TTR21, GW211PP37, SN3091 DISC HARROW BEARING
BCA/FEDERAL MOGUL: DC211TTR25 / DC211TTR21. FAFNIR/TORRINGTON: GW211PP21 / GW211PP37. SUNFLOWER: SN3091. Standard relubrication feature is drilled hole in groove. THIS BEARING UNIT IS ALSO KNOW AS.