Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken M270749D - M270710

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 M270700 Cone Part Number M270749D Cup Part Number M270710 Design Unit Inch Cage Material Pin-Type Note This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components. Related Assembly Number(s) M270749D-902B3 Dimensions d - Bore 17.6250 in D - Cup Outer Diameter 25.0000 in B - Double Cone Width 8.8125 in C - Cup Width 3.7500 in T - Bearing Width across Cups 8.8125 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 18.82 in Db - Cup Backface Backing Diameter 23.27 in Ab - Cage-Cone Frontface Clearance 0.34 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 191000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 1280000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 332000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 109000 lbf Factors K - Factor7 1.76 e - ISO Factor8 0.33 Y1 - ISO Factor9 2.03 Y2 - ISO Factor10 3.02 Cg - Geometry Factor11 0.246 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary