Tapered Roller Bearings - TS (Tapered Single) Imperial Timken 78238 - 78551

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 78000 Cone Part Number 78238 Cup Part Number 78551 Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 2 3/8 in D - Cup Outer Diameter 5.5130 in B - Cone Width 1.3085 in C - Cup Width 0.9260 in T - Bearing Width 1.4375 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.200 in r - Cup Backface "To Clear" Radius2 0.090 in da - Cone Frontface Backing Diameter 3.1 in db - Cone Backface Backing Diameter 3.46 in Da - Cup Frontface Backing Diameter 5.22 in Db - Cup Backface Backing Diameter 4.61 in Ab - Cage-Cone Frontface Clearance 0.2 in Aa - Cage-Cone Backface Clearance 0.24 in a - Effective Center Location3 0.31 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)4 11800 lbf C1 - Dynamic Radial Rating (1 million revolutions)5 45600 lbf C0 - Static Radial Rating 43400 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 17500 lbf Factors K - Factor7 0.67 e - ISO Factor8 0.87 Y - ISO Factor9 0.69 G1 - Heat Generation Factor (Roller-Raceway) 62.6 G2 - Heat Generation Factor (Rib-Roller End) 19.1 Cg - Geometry Factor10 0.0884