Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 71425 - 71751DC

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 71000 Cone Part Number 71425 Cup Part Number 71751DC Design Unit Inch Cage Material Stamped Steel Related Assembly Number(s) 71425-90137 Dimensions d - Bore 4 1/4 in D - Cup Outer Diameter 7.5 in B - Cone Width 1.9375 in C - Double Cup Width 3.1875 in T - Bearing Width across Cones 4.1874 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 4.96 in Da - Cup Frontface Backing Diameter 7.17 in Aa - Cage-Cone Backface Clearance 0.18 in a - Effective Center Location3 -0.26 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 21200 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 142000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 36900 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 15100 lbf Factors K - Factor8 1.4 e - ISO Factor9 0.42 Y1 - ISO Factor10 1.62 Y2 - ISO Factor11 2.42 Cg - Geometry Factor12 0.116