Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 497A - 493D

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 495 Cone Part Number 497A Cup Part Number 493D Design Unit Inch Cage Material Stamped Steel Related Assembly Number(s) 497A-90226 Dimensions d - Bore 3.3750 in D - Cup Outer Diameter 5.3750 in B - Cone Width 1.1720 in C - Double Cup Width 2.1250 in T - Bearing Width across Cones 2.7500 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.25 in r - Cup Backface "To Clear" Radius2 0.030 in db - Cone Backface Backing Diameter 4.13 in Da - Cup Frontface Backing Diameter 5.16 in Aa - Cage-Cone Backface Clearance 0.07 in a - Effective Center Location3 -0.03 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 9000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 60500 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 15700 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 6850 lbf Factors K - Factor8 1.31 e - ISO Factor9 0.44 Y1 - ISO Factor10 1.52 Y2 - ISO Factor11 2.26 Cg - Geometry Factor12 0.125