Patent ID: 7871201
Filing Date: 2011-01-18
Classification: F16C,Y10T

Abstract:
1. A tapered roller bearing comprising: an outer ring; an inner ring including a large rib portion; a plurality of tapered rollers interposed between the outer and inner rings; and a cage for the tapered rollers, wherein LWR/DW is within a range of 1.1 to 1.7 where LWR represents a roller effective length of the tapered rollers and DW represents a roller mean diameter of the tapered rollers, wherein RCO/LRO is 30 to 150, and RCI/LRI is 50 to 260 where RCO represents a crowning radius of the outer ring, LRO represents a raceway length of the outer ring, RCI represents a crowning radius of the inner ring and LRI represents a raceway length of the inner ring, and wherein the following expressions are satisfied: