Tapered bearings

Abstract

A gearbox support assembly for a turbine engine includes an epicyclic gear arrangement and a first tapered bearing and a second tapered bearing spaced apart from the first tapered bearing. The first tapered bearing and the second tapered bearing support the epicyclic gear arrangement.

1 . A gearbox support assembly for a turbine engine, comprising:
 an epicyclic gear arrangement;   a first tapered bearing and a second tapered bearing spaced apart from the first tapered bearing, the first tapered bearing and the second tapered bearing supporting the epicyclic gear arrangement.   
     
     
         2 . The gearbox support assembly as recited in  claim 1 , wherein the first tapered bearing and the second tapered bearing are located radially outwards from the epicyclic gear arrangement with regard to a central axis of the epicyclic gear arrangement. 
     
     
         3 . The gearbox support assembly as recited in  claim 1 , wherein the first tapered bearing is located axially forward along a line parallel to a central axis of the epicyclic gear arrangement and adjacent to a forward side of the epicyclic gear arrangement, and the second tapered bearing is located axially aft the first tapered bearing along the line and adjacent to an aft side of the epicyclic gear arrangement. 
     
     
         4 . The gearbox support assembly as recited in  claim 1 , wherein at least one of the first tapered bearing and the second tapered bearing includes a cylindrical roller element. 
     
     
         5 . The gearbox support assembly as recited in  claim 4 , wherein the cylindrical roller element is supported on a first tapered race. 
     
     
         6 . The gearbox support assembly as recited in  claim 1 , wherein the first tapered bearing and the second tapered bearing are spaced an equivalent radial distance from a central axis of the epicyclic gear arrangement. 
     
     
         7 . The gearbox support assembly as recited in  claim 6 , wherein the first tapered bearing includes a first roller element defining a first rotational axis and the second tapered bearing includes a second roller element defining a second rotational axis such that the first rotational axis and the second rotational axis intersect at a position that is radially inwards from the first roller element and the second roller element. 
     
     
         8 . A turbine engine comprising:
 a compressor section;   a combustor arranged in fluid receiving communication with the compressor section;   a turbine section arranged in fluid receiving communication with the combustor;   an epicyclic gear arrangement coupled to be driven by the turbine section; and   a first tapered bearing and a second tapered bearing spaced apart from the first tapered bearing, the first tapered bearing and the second tapered bearing supporting the epicyclic gear arrangement.   
     
     
         9 . The turbine engine as recited in  claim 8 , wherein the first tapered bearing and the second tapered bearing are located radially outwards from the epicyclic gear arrangement with regard to a central axis of the epicyclic gear arrangement. 
     
     
         10 . The turbine engine as recited in  claim 8 , wherein the first tapered bearing is located axially forward along a line parallel to a central axis of the epicyclic gear arrangement and adjacent to a forward side of the epicyclic gear arrangement, and the second tapered bearing is located axially aft with regard to the first tapered bearing along the line and adjacent to an aft side of the epicyclic gear arrangement. 
     
     
         11 . The turbine engine as recited in  claim 8 , wherein at least one of the first tapered bearing and the second tapered bearing includes a cylindrical roller element. 
     
     
         12 . The turbine engine as recited in  claim 11 , wherein the cylindrical roller element is supported on a tapered race. 
     
     
         13 . The turbine engine as recited in  claim 8 , wherein the first tapered bearing and the second tapered bearing are spaced an equivalent radial distance from a central axis of the epicyclic gear arrangement. 
     
     
         14 . The turbine engine as recited in  claim 13 , wherein the first tapered bearing includes a first roller element defining a first rotational axis and the second tapered bearing includes a second roller element defining a second rotational axis such that the first rotational axis and the second rotational axis intersect at a position that is radially inwards from the first tapered bearing and the second tapered bearing.