• Item: 618/630M Ball Bearings;
• Type: Deep Groove Ball Bearings;
• Brand: RDRJ
• Material:
Outer ring: High-carbon chrome bearing steel (Fully quench-hardened);
Inner ring: High-carbon chrome bearing steel (Fully quench-hardened);
Ball: High-carbon chrome bearing steel (Fully quench-hardened);
Retainer: High-carbon chrome steel stamping;
Seals: Cold-reduced electrolytic tinplate;
• Dimensions: 630mm x 780mm x 69mm;
• ID (inner diameter)/Bore: 630mm;
• OD (outer diameter): 780mm;
• Width/Height/Thickness: 69mm;
• Precision Rating: ISO Class 6/ ABEC-3/ DIN P6/JIS Class 6;
• Basic static load capacity: 400Cor(KN);
• Basic dynamic load capacity: 780Cr(KN);
• Limiting Speed: 1600 rpm (Grease lubricated); 900 rpm (Oil lubricated);
• Type of Retainer:Center-punch riveted;
• Number of Row: Single Row.








