Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 67790V - 67721D

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 67700 Cone Part Number 67790V Cup Part Number 67721D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 7 in D - Cup Outer Diameter 9 3/4 in B - Cone Width 1.875 in C - Double Cup Width 3.4375 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 0.030 in db - Cone Backface Backing Diameter 7.64 in Da - Cup Frontface Backing Diameter 9.48 in Aa - Cage-Cone Backface Clearance 0.17 in a - Effective Center Location3 0.19 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 28000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 188000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 48700 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 21100 lbf Factors K - Factor8 1.33 e - ISO Factor9 0.44 Y1 - ISO Factor10 1.54 Y2 - ISO Factor11 2.29 Cg - Geometry Factor12 0.121