Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 780W - 773D

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 775 Cone Part Number 780W Cup Part Number 773D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 4 in D - Cup Outer Diameter 7.0866 in B - Cone Width 1.8900 in C - Double Cup Width 3.3750 in T - Bearing Width across Cones 4.125 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 4.69 in Da - Cup Frontface Backing Diameter 6.65 in Aa - Cage-Cone Backface Clearance 0.13 in a - Effective Center Location3 -0.32 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 20200 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 135000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 35100 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 13300 lbf Factors K - Factor8 1.51 e - ISO Factor9 0.39 Y1 - ISO Factor10 1.75 Y2 - ISO Factor11 2.61 Cg - Geometry Factor12 0.107