Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken EE280700D - 281202

Описание

TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft. Specifications Series 280000 Cone Part Number EE280700D Cup Part Number 281202 Design Unit Inch Cage Material Stamped Steel Note This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components. Dimensions d - Bore 7 in D - Cup Outer Diameter 12 in B - Double Cone Width 4.5000 in C - Cup Width 1.6875 in T - Bearing Width across Cups 4.3085 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.13 in r - Cup Backface "To Clear" Radius2 0.130 in da - Cone Frontface Backing Diameter 7.87 in Db - Cup Backface Backing Diameter 10.98 in Ab - Cage-Cone Frontface Clearance 0.08 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 35100 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 236000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 61200 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 21700 lbf Factors K - Factor7 1.62 e - ISO Factor8 0.36 Y1 - ISO Factor9 1.87 Y2 - ISO Factor10 2.79 G1 - Heat Generation Factor (Roller-Raceway) 591 G2 - Heat Generation Factor (Rib-Roller End) 86 Cg - Geometry Factor11 0.112 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary