China Nonstandard Miniature Ball Bearing, 3.5X7X2.5mm, Mr74zz/D3.5 Custom Bearings, Find details about China 3.5X7X2.5mm Bearing, Custom Bearings from Nonstandard Miniature Ball Bearing, 3.5X7X2.5mm, Mr74zz/D3.5 Custom Bearings