Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken 378DW - 374

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 375 Cone Part Number 378DW Cup Part Number 374 Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 1 15/16 in D - Cup Outer Diameter 3.6718 in B - Double Cone Width 2.6570 in C - Cup Width 0.5938 in T - Bearing Width across Cups 1.9689 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.03 in r - Cup Backface "To Clear" Radius2 0.050 in da - Cone Frontface Backing Diameter 2.2 in Db - Cup Backface Backing Diameter 3.35 in Ab - Cage-Cone Frontface Clearance -0.19 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 5120 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 34400 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 8920 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 2970 lbf Factors K - Factor7 1.73 e - ISO Factor8 0.34 Y1 - ISO Factor9 1.99 Y2 - ISO Factor10 2.97 Cg - Geometry Factor11 0.0816 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary