Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken 72187 - 72488D

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 72000 Cone Part Number 72187 Cup Part Number 72488D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 1 7/8 in D - Cup Outer Diameter 4-7/8 in B - Cone Width 1.2910 in C - Double Cup Width 2.1875 in T - Bearing Width across Cones 3.0624 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 2.83 in Da - Cup Frontface Backing Diameter 4.56 in Aa - Cage-Cone Backface Clearance 0.18 in a - Effective Center Location3 0.05 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 8910 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 59800 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 15500 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)7 11200 lbf Factors K - Factor8 0.79 e - ISO Factor9 0.74 Y1 - ISO Factor10 0.92 Y2 - ISO Factor11 1.36 Cg - Geometry Factor12 0.0772