Tapered Roller Bearings - TS (Tapered Single) Imperial Timken 745A - 742

Описание

This is the most basic and most widely used type of tapered roller bearing. It 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. Specifications Series 745 Cone Part Number 745A Cup Part Number 742 Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2 3/4 in D - Cup Outer Diameter 5.9090 in B - Cone Width 1.8375 in C - Cup Width 1.4375 in T - Bearing Width 1.7500 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 3.23 in db - Cone Backface Backing Diameter 3.46 in Da - Cup Frontface Backing Diameter 5.63 in Db - Cup Backface Backing Diameter 5.28 in Ab - Cage-Cone Frontface Clearance 0.08 in Aa - Cage-Cone Backface Clearance 0.05 in a - Effective Center Location3 -0.47 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)4 21900 lbf C1 - Dynamic Radial Rating (1 million revolutions)5 84700 lbf C0 - Static Radial Rating 93800 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 12200 lbf Factors K - Factor7 1.8 e - ISO Factor8 0.33 Y - ISO Factor9 1.84 G1 - Heat Generation Factor (Roller-Raceway) 159.6 G2 - Heat Generation Factor (Rib-Roller End) 26.3 Cg - Geometry Factor10 0.0898