Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken 74510D - 74845

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 74000 Cone Part Number 74510D Cup Part Number 74845 Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 5.1183 in D - Cup Outer Diameter 8.4636 in B - Double Cone Width 4.8750 in C - Cup Width 1.3750 in T - Bearing Width across Cups 4.8750 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.06 in r - Cup Backface "To Clear" Radius2 0.130 in da - Cone Frontface Backing Diameter 5.75 in Db - Cup Backface Backing Diameter 7.72 in Ab - Cage-Cone Frontface Clearance 0.11 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 22300 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 150000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 38800 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 18600 lbf Factors K - Factor7 1.2 e - ISO Factor8 0.49 Y1 - ISO Factor9 1.38 Y2 - ISO Factor10 2.06 G1 - Heat Generation Factor (Roller-Raceway) 363 G2 - Heat Generation Factor (Rib-Roller End) 68.5 Cg - Geometry Factor11 0.134 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary