Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken A2031 - A2120D

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 A2000 Cone Part Number A2031 Cup Part Number A2120D Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 0.3125 in D - Cup Outer Diameter 1.2000 in B - Cone Width 0.4246 in C - Double Cup Width 0.8370 in T - Bearing Width across Cones 0.9999 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.02 in db - Cone Backface Backing Diameter 0.51 in Da - Cup Frontface Backing Diameter 1.12 in Aa - Cage-Cone Backface Clearance -0.03 in a - Effective Center Location2 -0.12 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 630 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 4230 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 1100 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 437 lbf Factors K - Factor7 1.44 e - ISO Factor8 0.41 Y1 - ISO Factor9 1.67 Y2 - ISO Factor10 2.48 Cg - Geometry Factor11 0.0308