Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken LM772749DW - LM772710

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 LM772700 Cone Part Number LM772749DW Cup Part Number LM772710 Design Unit Inch Cage Material Stamped Steel Related Assembly Number(s) LM772749DW-902A2 Dimensions d - Bore 19.2530 in D - Cup Outer Diameter 24.9950 in B - Double Cone Width 6.0625 in C - Cup Width 2.4375 in T - Bearing Width across Cups 6.0625 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 20.31 in Db - Cup Backface Backing Diameter 23.62 in Ab - Cage-Cone Frontface Clearance 0.19 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 108000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 728000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 189000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 87800 lbf Factors K - Factor7 1.24 e - ISO Factor8 0.47 Y1 - ISO Factor9 1.43 Y2 - ISO Factor10 2.12 G1 - Heat Generation Factor (Roller-Raceway) 5450 Cg - Geometry Factor11 0.253 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary