Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken LL789849 - LL789810D

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 LL789800 Cone Part Number LL789849 Cup Part Number LL789810D Design Unit Inch Cage Material Pin-Type Related Assembly Number(s) LL789849-90012 Dimensions d - Bore 70.2500 in D - Cup Outer Diameter 79.0000 in B - Cone Width 4.1875 in C - Double Cup Width 7.0000 in T - Bearing Width across Cones 9.5000 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.500 in r - Cup Backface "To Clear" Radius2 0.130 in db - Cone Backface Backing Diameter 72.44 in Da - Cup Frontface Backing Diameter 77.56 in Aa - Cage-Cone Backface Clearance 0.06 in a - Effective Center Location3 8.44 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 282000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 1890000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 490000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 212000 lbf Factors K - Factor8 1.33 e - ISO Factor9 0.44 Y1 - ISO Factor10 1.54 Y2 - ISO Factor11 2.29 Cg - Geometry Factor12 0.616