Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken 67985D - 67920

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 67900 Cone Part Number 67985D Cup Part Number 67920 Design Unit Inch Cage Material Stamped Steel Related Assembly Number(s) 67985D-90059 Dimensions d - Bore 8.1250 in D - Cup Outer Diameter 11.1250 in B - Double Cone Width 3.4375 in C - Cup Width 1.4375 in T - Bearing Width across Cups 3.4375 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.03 in r - Cup Backface "To Clear" Radius2 0.130 in da - Cone Frontface Backing Diameter 8.62 in Db - Cup Backface Backing Diameter 10.24 in Ab - Cage-Cone Frontface Clearance 0.11 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 24700 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 166000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 43000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 21500 lbf Factors K - Factor7 1.15 e - ISO Factor8 0.51 Y1 - ISO Factor9 1.33 Y2 - ISO Factor10 1.97 G1 - Heat Generation Factor (Roller-Raceway) 820 G2 - Heat Generation Factor (Rib-Roller End) 172 Cg - Geometry Factor11 0.139 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary