All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Single Cups > Tapered Roller Bearings - Single Cups - Metric > Part Number Y33109  

Part Number Y33109, Tapered Roller Bearings - Single Cups - Metric

    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

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  · Dimensions  · Abutment and Fillet Dimensions  · Factors

Specifications

Series
33109

Cup Part Number
Y33109

Design Units
METRIC

Full Timken Part Number
33109


Dimensions

D - Cup Outer Diameter
80 mm
3.1496 in

C - Cup Width
20.500 mm
0.8071 in


Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1
1.52 mm
0.06 in

Da - Cup Frontface Backing Diameter
76.96 mm
3.03 in

Db - Cup Backface Backing Diameter
71.12 mm
2.8 in
1 These maximum fillet radii will be cleared by the bearing corners.


Factors

K - Factor1
1.52

e - ISO Factor2
0.38

Y - ISO Factor3
1.57

G1 - Heat Generation Factor (Roller-Raceway)
35.7

G2 - Heat Generation Factor (Rib-Roller End)
16.5

Cg - Geometry Factor4
0.0843
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 factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
4 Geometry constant for Lubrication Life Adjustment Factor a3l.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances