FULL ROLLER-TYPE DOUBLE-ROW CYLINDRICAL ROLLER BEARING

摘要

PROBLEM TO BE SOLVED: To eliminate a waste loss caused by a division failure of an inner ring, and to achieve non-separation by avoiding the attachment of an inner ring coupling ring by rolling press processing, and an increase of the number of part items, in a full roller-type double-row cylindrical roller bearing.SOLUTION: A full roller-type double-row cylindrical roller bearing comprises a double-row outer ring 6, a double-row inner ring 10, and collar rings 11, 12 which are integrally formed. The double-row outer ring 6 has two raceway surfaces 3, 4 and a middle collar 5 at an internal periphery, and cylindrical rollers 1, 2 are formed so as to be arranged at the raceway surfaces 3, 4 from an axial direction. The double-row inner ring 10 has two raceway surfaces 7, 8 and a middle collar 9 at an external periphery, and the cylindrical rollers 1, 2 are formed so as to be arranged at the raceway surfaces 7, 8 from the axial direction. The collar rings 11, 12 are fixed to the double-row outer ring 6 by pressure insertion, and support the single-row cylindrical rollers 1, 2 to the axial direction.SELECTED DRAWING: Figure 1