Miniature ball bearings: 604-609, 624-629; 6000 series: 6000-6026, zz, 2rs, open type etc. 6200 series: 6200-6220, zz, 2rs, open type etc. 6300 series: 6300-6318, zz, 2rs, open type etc. 16000 series: 16003-16016, zz, 2rs, open type etc. For motorcycle use: 60/20, 60/28, 60/32, 62/22, 62/28, 62/32, 63/22, 63/28, 63/32. 6800 series: 6800-6813, zz, 2rs, open type etc. 6900 series: 6900-6910, zz, 2rs, opentype etc.
