Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 681A - 672D

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 675 Cone Part Number 681A Cup Part Number 672D Design Unit Inch Cage Material Stamped Steel Related Assembly Number(s) 681A-90112 Dimensions d - Bore 3.6250 in D - Cup Outer Diameter 6.6250 in B - Cone Width 1.625 in C - Double Cup Width 2.75 in T - Bearing Width across Cones 3.6250 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 4.57 in Da - Cup Frontface Backing Diameter 6.34 in Aa - Cage-Cone Backface Clearance 0.17 in a - Effective Center Location3 -0.11 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 15400 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 104000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 26900 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 12400 lbf Factors K - Factor8 1.24 e - ISO Factor9 0.47 Y1 - ISO Factor10 1.43 Y2 - ISO Factor11 2.14 Cg - Geometry Factor12 0.106