Patent ID: 7896556
Filing Date: 2011-03-01
Classification: F01L,F16C

Abstract:
1. A needle roller bearing comprising: an outer ring having a plurality of outer ring members split by split lines extending in an axial direction of the bearing; and a plurality of needle rollers arranged on an orbit surface of said outer ring so that the needle rollers can roll thereon, a cage holding said plurality of needle rollers at intervals, wherein said outer ring member has a positioning engaging part engaging with a housing for positioning, at a position shifted from a circumferential center of the housing, wherein said outer ring member has a middle region positioned between end regions of the outer ring member, the middle region acting as a load region while the bearing is used, and the end regions acting as non-load regions while the bearing is used, wherein said outer ring member has an engaging click protruding inward along a diameter at a width-direction end of the outer ring member to prevent said cage from moving in an axial direction, and said engaging click is positioned in at least one of said end regions and has circumferentially opposed and radially extending edges, and said positioning engaging part is positioned in at least one of said end regions, wherein said positioning engaging part and the engaging click are positioned in opposing end regions.