6306-2Z/C4 SKF 30 x 72 x 19 mm DEEP GR. BALL SINGLE ROW
2Z - Steel Shield on Two Sides. BALL SINGLE ROW. C4 - Internal Play Higher than C3. - - No External Modification. Standard - Standard Lubrication. Pn - Standard Precision. Steel - Steel Cage, Simple. Cylindrical - Cylindrical Bore.