Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken M257148DW - M257110

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 M257100 Cone Part Number M257148DW Cup Part Number M257110 Design Unit Inch Cage Material Stamped Steel Related Assembly Number(s) M257148DW-902A1 Dimensions d - Bore 12 in D - Cup Outer Diameter 16.5 in B - Double Cone Width 5.1250 in C - Cup Width 2.1250 in T - Bearing Width across Cups 5.1250 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.13 in r - Cup Backface "To Clear" Radius2 0.250 in da - Cone Frontface Backing Diameter 12.8 in Db - Cup Backface Backing Diameter 15.43 in Ab - Cage-Cone Frontface Clearance 0.18 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 69700 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 468000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 121000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 39700 lbf Factors K - Factor7 1.76 e - ISO Factor8 0.33 Y1 - ISO Factor9 2.03 Y2 - ISO Factor10 3.02 Cg - Geometry Factor11 0.167 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary