Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken A4049 - A4138D

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 A4000 Cone Part Number A4049 Cup Part Number A4138D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 0.4992 in D - Cup Outer Diameter 1.3775 in B - Cone Width 0.4326 in C - Double Cup Width 0.8125 in T - Bearing Width across Cones 0.9910 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.03 in r - Cup Backface "To Clear" Radius2 0.030 in db - Cone Backface Backing Diameter 0.69 in Da - Cup Frontface Backing Diameter 1.26 in Aa - Cage-Cone Backface Clearance 0 in a - Effective Center Location3 -0.1 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 767 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 5150 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 1330 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 594 lbf Factors K - Factor8 1.29 e - ISO Factor9 0.45 Y1 - ISO Factor10 1.49 Y2 - ISO Factor11 2.22 Cg - Geometry Factor12 0.0355