Tapered Roller Bearings - Double Tapered Cones - Imperial Timken LM742749DW

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 LM742700 Cone Part Number LM742749DW Design Units Imperial Cage Type Stamped Steel C1 - Dynamic Radial Rating (1 million revolutions)1 96600 lbf C0 - Static Radial Rating 200000 lbf Dimensions d - Cone Bore 8 1/2 in B - Double Cone Width 3.3750 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius2 0.09 in da - Cone Frontface Backing Diameter 9.03 in Ab - Cage-Cone Frontface Clearance 0.12 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)3 25000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 168000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 43600 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 20600 lbf Factors K - Factor7 1.21 G1 - Heat Generation Factor (Roller-Raceway) 867 Cg - Geometry Factor8 0.139