Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken L521949 - L521910DE

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 L521900 Cone Part Number L521949 Cup Part Number L521910DE Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 4 1/4 in D - Cup Outer Diameter 5.7500 in B - Cone Width 0.8438 in C - Double Cup Width 2.1250 in T - Bearing Width across Cones 2.4999 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.06 in r - Cup Backface "To Clear" Radius2 0.030 in db - Cone Backface Backing Diameter 4.57 in Da - Cup Frontface Backing Diameter 5.57 in Aa - Cage-Cone Backface Clearance 0.01 in a - Effective Center Location3 0.19 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 5180 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 34800 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 9020 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 3480 lbf Factors K - Factor8 1.49 e - ISO Factor9 0.39 Y1 - ISO Factor10 1.72 Y2 - ISO Factor11 2.56 Cg - Geometry Factor12 0.135