Tapered Roller Bearings - Single Cones - Metric Timken X30311M

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 30311M Cone Part Number X30311M Design Units METRIC Cage Type Stamped Steel C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 303000 N C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 78500 N Full Timken Part Number 30311 Dimensions d - Cone Bore 55 mm B - Cone Width 29.000 mm Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius3 2.540 mm da - Cone Frontface Backing Diameter 67 mm db - Cone Backface Backing Diameter 71 mm Ab - Cage-Cone Frontface Clearance 3.8 mm Aa - Cage-Cone Backface Clearance 2 mm a - Effective Center Location4 -6.6 mm Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)5 45100 N C1 - Dynamic Radial Rating (1 million revolutions)6 174000 N C0 - Static Radial Rating 190000 N Ca90- Dynamic Thrust Rating (90 million revolutions)7 26600 N Factors K - Factor8 1.69 G1 - Heat Generation Factor (Roller-Raceway) 62.8 G2 - Heat Generation Factor (Rib-Roller End) 24 Cg - Geometry Factor9 0.0628