Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 750 - 742D

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 745 Cone Part Number 750 Cup Part Number 742D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 3.1250 in D - Cup Outer Diameter 6-1/8 in B - Cone Width 1.8375 in C - Double Cup Width 3.3750 in T - Bearing Width across Cones 4.0000 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 3.78 in Da - Cup Frontface Backing Diameter 5.64 in Aa - Cage-Cone Backface Clearance 0.05 in a - Effective Center Location3 -0.47 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 21900 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 147000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 38200 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 12200 lbf Factors K - Factor8 1.8 e - ISO Factor9 0.33 Y1 - ISO Factor10 2.08 Y2 - ISO Factor11 3.09 Cg - Geometry Factor12 0.0898