High speed, High precision, Low noise and Long life. Structure: Self-AligningType: BallBrand Name: HRB, INA, KOYO, LYC, NACHI, NSK, NT...Bore Size: 10 - 750 mmOutside Diameter: 20 - 1500 mmModel Number: 12K, 22K, 13K, 23KPrecision Rating: P0,P6,P5.P4Seals Type: Open /SealedNumber of Row: Double RowPlace of Origin: Japancage: steel/brass Self-aligning ball bearing 1206