Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 53178 - 53390D

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 53000 Cone Part Number 53178 Cup Part Number 53390D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 1 3/4 in D - Cup Outer Diameter 3.8750 in B - Cone Width 1.1142 in C - Double Cup Width 1.7500 in T - Bearing Width across Cones 2.5625 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.08 in r - Cup Backface "To Clear" Radius2 0.06 in db - Cone Backface Backing Diameter 2.36 in Da - Cup Frontface Backing Diameter 3.56 in Aa - Cage-Cone Backface Clearance 0.19 in a - Effective Center Location3 -0.01 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 6920 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 46500 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 12000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 8760 lbf Factors K - Factor8 0.79 e - ISO Factor9 0.74 Y1 - ISO Factor10 0.91 Y2 - ISO Factor11 1.36 Cg - Geometry Factor12 0.093