Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken M272749 - M272710CD

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 M272700 Cone Part Number M272749 Cup Part Number M272710CD Design Unit Inch Cage Material Pin-Type Related Assembly Number(s) M272749-90044 Dimensions d - Bore 18.8750 in D - Cup Outer Diameter 26.7500 in B - Cone Width 5.0625 in C - Double Cup Width 8.7500 in T - Bearing Width across Cones 10.8750 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 20.31 in Da - Cup Frontface Backing Diameter 25.53 in Aa - Cage-Cone Backface Clearance 0.31 in a - Effective Center Location3 -0.35 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 968000 N C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 1460000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 379000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 124000 lbf Factors K - Factor8 1.76 e - ISO Factor9 0.7 Y1 - ISO Factor10 0.97 Y2 - ISO Factor11 1.44 Cg - Geometry Factor12 0.26