... roller bearings, NSK, KOYO, NTN, INA....this is the most representative kind of rolling bearing with a wide ... radial load and bi- direcrtional axial load,it is suitable for rotation at a high speed and ... bearing with dustproof cover and rubber seal ring is pre-filled with moderate grease.Such bearing are ... agricultural machinery and various specialized machinerie 1207 1207K Self-Aligning Ball Bearing