Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial Timken 3979 - 3920-B

Описание

Like the TS bearing design, the TSF design consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings. Specifications Series 3900 Cone Part Number 3979 Cup Part Number 3920-B Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2 1/4 in D - Cup Outer Diameter 4-7/16 in D1 - Flange Outer Diameter 4.6210 in B - Cone Width 1.1830 in C - Cup Width 0.9375 in C1 - Cup Flange Width 0.1875 in T1 - Bearing Width to Flange 0.4375 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in r - Cup Backface "To Clear" Radius2 0.130 in da - Cone Frontface Backing Diameter 2.6 in db - Cone Backface Backing Diameter 2.83 in Da - Cup Frontface Backing Diameter 4.29 in Ab - Cage-Cone Frontface Clearance 0.08 in Aa - Cage-Cone Backface Clearance 0.06 in a - Effective Center Location3 -0.18 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)4 8090 lbf C1 - Dynamic Radial Rating (1 million revolutions)5 31200 lbf C0 - Static Radial Rating 43000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 5570 lbf Factors K - Factor7 1.45 e - ISO Factor8 0.4 Y - ISO Factor9 1.49 G1 - Heat Generation Factor (Roller-Raceway) 75.2 G2 - Heat Generation Factor (Rib-Roller End) 21.3 Cg - Geometry Factor10 0.109