Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken 496D - 493X

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 495 Cone Part Number 496D Cup Part Number 493X Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 3 3/16 in D - Cup Outer Diameter 5.5118 in B - Double Cone Width 2.3440 in C - Cup Width 0.8750 in T - Bearing Width across Cups 2.3750 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.06 in r - Cup Backface "To Clear" Radius2 0.12 in da - Cone Frontface Backing Diameter 3.58 in Db - Cup Backface Backing Diameter 4.84 in Ab - Cage-Cone Frontface Clearance 0.12 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 9000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 60500 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 15700 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 6850 lbf Factors K - Factor7 1.31 e - ISO Factor8 0.44 Y1 - ISO Factor9 1.52 Y2 - ISO Factor10 2.26 G1 - Heat Generation Factor (Roller-Raceway) 105 G2 - Heat Generation Factor (Rib-Roller End) 29.3 Cg - Geometry Factor11 0.125 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary