Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken HM256849 - HM256810D

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 HM256800 Cone Part Number HM256849 Cup Part Number HM256810D Design Unit Inch Cage Material Pin-Type Related Assembly Number(s) HM256849-904A4 Dimensions d - Bore 11.8125 in D - Cup Outer Diameter 16.6250 in B - Cone Width 3.2500 in C - Double Cup Width 5.3750 in T - Bearing Width across Cones 6.8750 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.25 in r - Cup Backface "To Clear" Radius2 0.06 in db - Cone Backface Backing Diameter 12.91 in Da - Cup Frontface Backing Diameter 15.95 in Aa - Cage-Cone Backface Clearance 0.22 in a - Effective Center Location3 -0.22 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 336000 N C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 508000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 132000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 43600 lbf Factors K - Factor8 1.73 e - ISO Factor9 0.71 Y1 - ISO Factor10 0.95 Y2 - ISO Factor11 1.42 Cg - Geometry Factor12 0.178