Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 34304 - 34478D

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 34000 Cone Part Number 34304 Cup Part Number 34478D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 3.0455 in D - Cup Outer Diameter 4.7812 in B - Cone Width 0.9060 in C - Double Cup Width 1.5000 in T - Bearing Width across Cones 2.0625 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 3.54 in Da - Cup Frontface Backing Diameter 4.60 in Aa - Cage-Cone Backface Clearance 0.09 in a - Effective Center Location3 0.06 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 5960 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 40000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 10400 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 4600 lbf Factors K - Factor8 1.3 e - ISO Factor9 0.45 Y1 - ISO Factor10 1.5 Y2 - ISO Factor11 2.23 Cg - Geometry Factor12 0.109