Tapered Roller Bearings - Double Tapered Cones - Imperial Timken LM278848D

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 LM278800 Cone Part Number LM278848D Design Units Imperial Cage Type Pin-Type C1 - Dynamic Radial Rating (1 million revolutions)1 740000 lbf C0 - Static Radial Rating 1860000 lbf Note This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components. Dimensions d - Cone Bore 23.0625 in B - Double Cone Width 9.0625 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius2 0.25 in da - Cone Frontface Backing Diameter 24.25 in Ab - Cage-Cone Frontface Clearance 0.31 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)3 192000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 1290000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 334000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 109000 lbf Factors K - Factor7 1.76 G1 - Heat Generation Factor (Roller-Raceway) 11600 G2 - Heat Generation Factor (Rib-Roller End) 784 Cg - Geometry Factor8 0.291