Double row four-point contact ball bearings

摘要

PPROBLEM TO BE SOLVED: To provide a double row four-point contact ball bearing effectively receiving a large radial load and right and left axial loads and simplifying installation and management. PSOLUTION: The double row four-point contact ball bearing 1 has an inner ring 2 having two rows of raceway surfaces 4 on an outer periphery 2a and integrally formed, an outer ring 3 having two rows of the raceway surfaces 5 on an inner periphery 3a and integrally formed, and balls 8 rolling between the respective raceway surfaces of inner and outer rings, and is constituted so that the respective raceway surfaces and the balls provided on the respective raceway surfaces come in contact with each other at four points. Distance A between the raceway surfaces of the outer ring differs from the distance B between the raceway surfaces of the inner ring. PCOPYRIGHT: (C)2005,JPO&NCIPI