7200B Bearing Angular contact 7200B cartridge unit 💡 What’s the purpose of

💡 What’s the purpose of a concave outer surface on a ball bearing

NJ311EG width is 29mm

Polyamide resin cage and Abec-7 Made in Japan

the Inner Diameter is 16mm

7200B Bearing Angular contact 7200B cartridge unit 💡 What’s the purpose of7200B Bearing single row Angular contact ball bearings SKU: 7200BBearing Inner Ring Diameter (bore): 10mm Inner Ring Tolerance: 0~ 8m Outer Ring Diameter: 30mm Outer Ring Tolerance: 0~ 11m Width: 9mm Clearance: 0~9m Basic Dynamic Load Rating Cr: 7,02 kN Basic Static Load Rating Cor: 3,35 kN Grease Lubrication: 30000 Brand: VXB Equal The Barden Corporation 200H Equal The Barden Corporation 2200H Equal Fafnir Bearing Division 200WI Equal Fafnir Bearing