Tapered Roller Bearings - TS (Tapered Single) Imperial Timken M278749 - M278710

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 M278700 Cone Part Number M278749 Cup Part Number M278710 Design Unit Inch Cage Material Pin-Type Related Assembly Number(s) M278749-902A1 Dimensions d - Bore 22.5000 in D - Cup Outer Diameter 32.0000 in B - Cone Width 6.1250 in C - Cup Width 4.7500 in T - Bearing Width 6.1250 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.25 in r - Cup Backface "To Clear" Radius2 0.250 in da - Cone Frontface Backing Diameter 23.98 in db - Cone Backface Backing Diameter 24.21 in Da - Cup Frontface Backing Diameter 30.47 in Db - Cup Backface Backing Diameter 29.76 in Ab - Cage-Cone Frontface Clearance 0.34 in Aa - Cage-Cone Backface Clearance 0.53 in a - Effective Center Location3 -0.45 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)4 264000 lbf C1 - Dynamic Radial Rating (1 million revolutions)5 1020000 lbf C0 - Static Radial Rating 2370000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 150000 lbf Factors K - Factor7 1.76 e - ISO Factor8 0.33 Y - ISO Factor9 1.8 G1 - Heat Generation Factor (Roller-Raceway) 12425.1 G2 - Heat Generation Factor (Rib-Roller End) 669.4 Cg - Geometry Factor10 0.299