Separator grease retention and feed system for wheel spindle bearings

Abstract

A separator for a bearing comprising a frame including a plurality of cavities for receiving rolling elements and further including a lubrication channel in fluid communication with at least one of the plurality of cavities. This separator may be a component of a bearing including an inner race, an outer race, and a plurality of rolling elements disposed in each of the plurality of cavities of the separator and set to be in movable contact with the outer race and inner race of the bearing. A lubricant is introduced into the lubrication channel and flows into each of the plurality of cavities which provides evenly distributed lubrication to each rolling element of the bearing assembly.

1 . A separator for a bearing comprising a frame including an axially inboard exterior side, an axially outboard exterior side substantially opposite said first exterior side, and an intermediate region disposed between said axially inboard exterior side and said axially outboard exterior side, said frame defining a plurality of cavities configured to support ball bearings and further defining an integral lubrication channel in fluid communication with at least one of said plurality of cavities; 
 wherein each of said plurality of cavities is defined by extending a depth into said frame from said axially outboard exterior side and terminating at said intermediate region; and    wherein said lubrication channel is defined by opening on the exterior, axially inboard side of said frames and terminating at said intermediate region, and wherein said lubrication channel is in fluid communication with each of said plurality of cavities and is radially inward from said frame and lies axially within a first plane, said first plane being parallel to a second plane passing through respective center points of each of said plurality of cavities.    
   
   
       2 . The separator of  claim 1  wherein said frame is annular.  
   
   
       3 . The separator of  claim 2  wherein said lubrication channel is radially inward from said frame and lies within a first plane, said first plane being parallel to a second plane passing through respective center points of each of said plurality of cavities.  
   
   
       4 . A bearing comprising: 
 an outer race;    an inner race; and    a separator member disposed between said inner race and said outer race comprising a frame including a first exterior side, a second exterior side substantially opposite said first exterior side, and an intermediate region disposed between said first exterior side and said second exterior side, said frame defining a plurality of cavities configured to support rolling elements, and further defining a lubrication channel in fluid communication with at least one of said plurality of cavities;    wherein said plurality of cavities is defined by extending a depth into said frame from said first exterior side and terminating at said intermediate region; and    wherein said lubrication channel is defined by extending a depth into said frame from said second exterior side and terminating at said intermediate region, and wherein said lubrication channel is in fluid communication with each of said plurality of cavities and is radially inward from said frame and lies within a first plane, said first plane being parallel to a second plane passing through respective center points of each of said plurality of cavities.    
   
   
       5 . The bearing of  claim 4 , wherein said inner race and said outer race are annular.  
   
   
       6 . The bearing of  claim 5  wherein said frame is annular.  
   
   
       7 . The bearing of  claim 6 , wherein said lubrication channel is radially inward from said frame and lies within a first plane, said first plane being parallel to a second plane passing through respective center points of each of said plurality of cavities.