Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken M255449D - M255410

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 M255400 Cone Part Number M255449D Cup Part Number M255410 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) M255449D-90034 Dimensions d - Bore 11.3750 in D - Cup Outer Diameter 16.0000 in B - Double Cone Width 5.6875 in C - Cup Width 2.3750 in T - Bearing Width across Cups 5.6874 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.13 in r - Cup Backface "To Clear" Radius2 0.130 in da - Cone Frontface Backing Diameter 12.2 in Db - Cup Backface Backing Diameter 14.92 in Ab - Cage-Cone Frontface Clearance 0.22 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 69300 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 466000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 121000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 40100 lbf Factors K - Factor7 1.73 e - ISO Factor8 0.34 Y1 - ISO Factor9 2 Y2 - ISO Factor10 2.97 G1 - Heat Generation Factor (Roller-Raceway) 2300 G2 - Heat Generation Factor (Rib-Roller End) 287 Cg - Geometry Factor11 0.172 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary