Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 558A - 552DC

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 555 Cone Part Number 558A Cup Part Number 552DC Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2 3/8 in D - Cup Outer Diameter 4-7/8 in B - Cone Width 1.4440 in C - Double Cup Width 2.5 in T - Bearing Width across Cones 3.1249 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in r - Cup Backface "To Clear" Radius2 0.06 in db - Cone Backface Backing Diameter 2.99 in Da - Cup Frontface Backing Diameter 4.56 in Aa - Cage-Cone Backface Clearance 0.07 in a - Effective Center Location3 -0.37 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 11100 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 74700 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 19400 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 6590 lbf Factors K - Factor8 1.69 e - ISO Factor9 0.35 Y1 - ISO Factor10 1.95 Y2 - ISO Factor11 2.9 Cg - Geometry Factor12 0.111