Modelcraft Miniature Ball Bearings
- Modelcraft MR 63 ZZ, Modelcraft Miniature Ball Bearing Closed 6mm OD 3mm Bore 2.5mm Width are ideal for custom precision applications, & in situations where space is limited. Modelcraft MR 63 ZZ Miniature Ball Bearing Closed 6mm OD 3mm Bore 2.5mm Width