Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 47487 - 47420DC

Описание

The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore. Specifications Series 47400 Cone Part Number 47487 Cup Part Number 47420DC Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2 3/4 in D - Cup Outer Diameter 4.7244 in B - Cone Width 1.2813 in C - Double Cup Width 2.3125 in T - Bearing Width across Cones 2.8124 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in r - Cup Backface "To Clear" Radius2 0.030 in db - Cone Backface Backing Diameter 3.31 in Da - Cup Frontface Backing Diameter 4.53 in Aa - Cage-Cone Backface Clearance 0.07 in a - Effective Center Location3 -0.25 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 10400 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 70000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 18100 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 6420 lbf Factors K - Factor8 1.62 e - ISO Factor9 0.36 Y1 - ISO Factor10 1.87 Y2 - ISO Factor11 2.79 Cg - Geometry Factor12 0.115