All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Imperial > Part Number A2047 - A2126  

Part Number A2047 - A2126, Tapered Roller Bearings - TS (Tapered Single) Imperial

    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  · Basic Load Ratings  · Factors

Specifications

Series
A2000

Cone Part Number
A2047

Cup Part Number
A2126

Design Unit
Inch

Cage Material
Stamped Steel

Related Assembly Number(s)
A2047-90019


Dimensions

d - Bore
0.4719 in
11.986 mm

D - Cup Outer Diameter
1.2595 in
31.991 mm

B - Cone Width
0.4246 in
10.785 mm

C - Cup Width
0.3125 in
7.938 mm

T - Bearing Width
0.3940 in
10.008 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.03 in
0.800 mm

r - Cup Backface "To Clear" Radius2
0.050 in
1.27 mm

da - Cone Frontface Backing Diameter
0.61 in
15.5 mm

db - Cone Backface Backing Diameter
0.65 in
16.5 mm

Da - Cup Frontface Backing Diameter
1.18 in
30.00 mm

Db - Cup Backface Backing Diameter
1.02 in
25.91 mm

Ab - Cage-Cone Frontface Clearance
0.09 in
2.3 mm

Aa - Cage-Cone Backface Clearance
-0.03 in
-0.8 mm

a - Effective Center Location3
-0.12 in
-3 mm
1 These maximum fillet radii will be cleared by the bearing corners.
2 These maximum fillet radii will be cleared by the bearing corners.
3 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
630 lbf
2800 N

C1 - Dynamic Radial Rating (1 million revolutions)2
2430 lbf
10800 N

C0 - Static Radial Rating
2070 lbf
9230 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
437 lbf
1940 N
1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.


Factors

K - Factor1
1.44

e - ISO Factor2
0.41

Y - ISO Factor3
1.48

G1 - Heat Generation Factor (Roller-Raceway)
1.7

G2 - Heat Generation Factor (Rib-Roller End)
3.2

Cg - Geometry Factor4
0.0308
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



 NEW PRODUCT OFFERING 


HPTO34S1-M-Angle-R
PT Tech