Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial Timken 78248C - 78513-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 78000C Cone Part Number 78248C Cup Part Number 78513-B Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2 1/2 in D - Cup Outer Diameter 5.1259 in D1 - Flange Outer Diameter 5.4409 in B - Cone Width 1.3085 in C - Cup Width 0.9260 in C1 - Cup Flange Width 0.2756 in T1 - Bearing Width to Flange 0.7871 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.03 in r - Cup Backface "To Clear" Radius2 0.090 in da - Cone Frontface Backing Diameter 3.03 in db - Cone Backface Backing Diameter 3.62 in Da - Cup Frontface Backing Diameter 5.19 in Ab - Cage-Cone Frontface Clearance 0.21 in Aa - Cage-Cone Backface Clearance 0.22 in a - Effective Center Location3 0.33 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)4 61300 N C1 - Dynamic Radial Rating (1 million revolutions)5 53200 lbf C0 - Static Radial Rating 52600 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 20400 lbf Factors K - Factor7 0.67 e - ISO Factor8 0.87 Y - ISO Factor9 0.69 G1 - Heat Generation Factor (Roller-Raceway) 71.3 G2 - Heat Generation Factor (Rib-Roller End) 17.6 Cg - Geometry Factor10 0.0926