Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 9278 - 9220D

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 9200 Cone Part Number 9278 Cup Part Number 9220D Design Unit Inch Cage Material Stamped Steel Related Assembly Number(s) 9278-90025 Dimensions d - Bore 2 11/16 in D - Cup Outer Diameter 6-3/8 in B - Cone Width 1.8125 in C - Double Cup Width 2.7810 in T - Bearing Width across Cones 4.1560 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in r - Cup Backface "To Clear" Radius2 0.030 in db - Cone Backface Backing Diameter 4.17 in Da - Cup Frontface Backing Diameter 6.04 in Aa - Cage-Cone Backface Clearance 0.33 in a - Effective Center Location3 0 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 20600 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 138000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 35800 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 24900 lbf Factors K - Factor8 0.82 e - ISO Factor9 0.71 Y1 - ISO Factor10 0.95 Y2 - ISO Factor11 1.42 Cg - Geometry Factor12 0.0984