17 mm x 35 mm x 10 mm NSK 7003 A NSK Bearing

The online 17 mm x 35 mm x 10 mm NSK 7003 A NSK Bearing parts store gives AD Bearing Machine Co., Ltd you 35 mm inner ring width: immediate access to a Chrome Steel outer ring material: selection of more than 1.4 million new, used, remanufactured. 17 mm x 35 mm x 10 mm

What is 7003 A bearing interchange？