Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken 487TD - 472A

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 475 Cone Part Number 487TD Cup Part Number 472A Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2.8375 in D - Cup Outer Diameter 4.7244 in B - Double Cone Width 2.6590 in C - Cup Width 0.9230 in T - Bearing Width across Cups 2.6556 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.03 in r - Cup Backface "To Clear" Radius2 0.130 in da - Cone Frontface Backing Diameter 3.15 in Db - Cup Backface Backing Diameter 4.17 in Ab - Cage-Cone Frontface Clearance 0.12 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 7890 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 53000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 13700 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 5200 lbf Factors K - Factor7 1.52 e - ISO Factor8 0.38 Y1 - ISO Factor9 1.75 Y2 - ISO Factor10 2.61 Cg - Geometry Factor11 0.108 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary