Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken NA456SW - 452D

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 455 Cone Part Number NA456SW Cup Part Number 452D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2 in D - Cup Outer Diameter 4.25 in B - Cone Width 1.4688 in C - Double Cup Width 2.1250 in T - Bearing Width across Cones 2.9376 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 2.56 in Da - Cup Frontface Backing Diameter 3.96 in Aa - Cage-Cone Backface Clearance 0.26 in a - Effective Center Location3 -0.46 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 7900 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)5 4540 lbf Factors K - Factor6 1.74 e - ISO Factor7 0.34 Y1 - ISO Factor8 2.01 Y2 - ISO Factor9 3