Outer ring for rocking bearing, retainer for rocking bearing, rocking bearing, and air disk brake system

Abstract

An outer ring for rocking bearing ( 11 a ) includes a raceway surface ( 12 a ) on the inner diameter side and has flange parts ( 13 a ) and ( 13 b ) provided by bending axial both ends to the inner diameter side. The flange parts ( 13 a ) and ( 13 b ) are provided with bent parts ( 17 a ) and ( 17 b ) axially bent toward the raceway surface ( 12 a ) side so as to enfold a retainer arranged on the inner diameter side. Thus, the retainer can be enfolded by the bent parts ( 17 a ) and ( 17 b ). Therefore, even when the retainer comes to be moved to the inner diameter side of the outer ring for rocking bearing ( 11 a ), the retainer is caught by the bent parts ( 17 a ) and ( 17 b ), so that the movement of the retainer to the inner diameter side is restricted and rollers and the retainer can be prevented from dropping off.

1 - 34 . (canceled) 
     
     
         35 . A retainer for rocking bearing comprising:
 a pair of connection parts extending in a circumferential direction; and   a plurality of column parts connecting said pair of connection parts to each other to form a plurality of pockets to hold rollers between said adjacent column parts, wherein   the radial outermost part of said column part is arranged apart from a pitch circle formed by connecting rotation centers of said rollers.   
     
     
         36 . A rocking bearing comprising:
 an outer ring for rocking bearing containing a raceway surface on the inner diameter side and having a flange part provided by bending axial each end to the inner diameter side;   a plurality of rollers arranged on said raceway surface; and   the retainer for rocking bearing according to  claim 35 .   
     
     
         37 . A retainer for rocking bearing comprising:
 a pair of connection parts extending in a circumferential direction; and   a plurality of column parts connecting said pair of connection parts to each other to form a plurality of pockets to hold the rollers between said adjacent column parts, and satisfying a relation:
   {θ/( n− 1)}°< a   0 <90°
 
   wherein n represents the number of rollers housed in said pockets, a 0  represents an angle formed between opposed wall surfaces of said adjacent column parts, and θ represents a center angle formed between rotation centers of the rollers housed in said pockets positioned at circumferential both ends.   
     
     
         38 . A rocking bearing comprising:
 an outer ring for rocking bearing containing a raceway surface on the inner diameter side and having a flange part provided by bending axial each end to the inner diameter side;   a plurality of rollers arranged on said raceway surface; and   the retainer for rocking bearing according to  claim 37 .