Part Number 34500, Tapered Roller Bearings - Single Cups

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.

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Unit of Measure

Key Dimensions | Other Dimensions | Factors

Key Dimensions

Cup Part Number	N/A 34500
O.D. (D)	N/A 5 in127 mm
Outer Ring Width (C)	N/A 0.7812 in19.842 mm
e Factor ¹	N/A 0.45
Y Factor ²	N/A 1.33

Other Dimensions

Weight	N/A 1.1 Kg2.5 lb
Max Housing Fillet Radius³	N/A 0.130 in3.30 mm
Housing Backing Shoulder Dia. - Frontface (Da)	N/A 4.67 in118.62 mm
Housing Backing Shoulder Dia. - Backface (Db)	N/A 4.41 in112.01 mm

Factors

Geometry Factor (Cg)⁴

N/A 0.109

¹ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
² These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
³ These maximum fillet radii will be cleared by the bearing corners.
⁴ Geometry constant for Lubrication Life Adjustment Factor a3l.

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Key Dimensions

Cup Part Number

O.D. (D)

Outer Ring Width (C)

Other Dimensions

Weight

Housing Backing Shoulder Dia. - Frontface (Da)

Housing Backing Shoulder Dia. - Backface (Db)

Factors