公开(公告)号：EP2211067A4

公开(公告)日：2011-11-02

申请号：EP08840689

申请日：2008-10-16

申请人： NTN TOYO BEARING CO LTD

发明人： MURAMATSU KATSUTOSHI ,  HONDA MASAAKI ,  ISHIDA HIKARU ,  NINOYU NOBUYUKI

IPC分类号： F16C33/62 ,  C04B35/597 ,  C04B35/599 ,  F16C33/30 ,  F16C33/32 ,  F16C33/34

CPC分类号： C04B35/597 ,  C04B35/6455 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3869 ,  C04B2235/767 ,  C04B2235/94 ,  C04B2235/96 ,  F16C19/38 ,  F16C23/086 ,  F16C33/32 ,  F16C33/34 ,  F16C33/62 ,  F16C2206/60 ,  F16C2220/20 ,  F16C2326/02 ,  F16C2360/31 ,  F16C2361/61 ,  F16C2380/26

摘要： Each of an outer ring (11), an inner ring (12), and a ball (13) is a rolling contact member formed of a ²-sialon sintered body inexpensive, capable of reliably ensuring sufficient durability, and capable of being used in an application where an imposed load is changed abruptly. The sintered body contains as a main component ²-sialon represented by a compositional formula of Si 6-Z Al Z O Z N 8-Z and satisfying 0.1 ‰¤ z ‰¤ 3.5, and has a remainder formed of an impurity. The rolling contact member has a Young's modulus of 180 GPa or greater but 270 GPa or smaller.