Montage of Timken Bearing Products 
Search Catalog
        
 All Product Types    Tapered Roller Bearings - TS (Tapered Single) Imperial
View Cart View RFQs Express Ordering  | Shipping 
 | Tax 
 | Terms
 Shopping Cart 0 Items
 Request for Quote 0 Items
All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Imperial > Part Number A4059 - A4138  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number A4059 - A4138, Tapered Roller Bearings - TS (Tapered Single) Imperial


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.



Unit of Measure: Imperial Metric Both

Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Basic Load Ratings  · Factors

Specifications

Series
A4000

Cone Part Number
A4059

Cup Part Number
A4138

Design Unit
Inch

Cage Material
Stamped Steel

Related Assembly Number(s)
A4059-90022
A4059-902A6


Dimensions

d - Bore
0.5901 in
14.989 mm

D - Cup Outer Diameter
1.3775 in
34.989 mm

B - Cone Width
0.4326 in
10.988 mm

C - Cup Width
0.3437 in
8.730 mm

T - Bearing Width
0.4330 in
10.998 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
0.75 in
19 mm

db - Cone Backface Backing Diameter
0.77 in
19.5 mm

Da - Cup Frontface Backing Diameter
1.28 in
32.51 mm

Db - Cup Backface Backing Diameter
1.14 in
28.96 mm

Ab - Cage-Cone Frontface Clearance
0.07 in
1.8 mm

Aa - Cage-Cone Backface Clearance
0 in
0 mm

a - Effective Center Location3
-0.1 in
-2.5 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
767 lbf
3410 N

C1 - Dynamic Radial Rating (1 million revolutions)2
2960 lbf
13200 N

C0 - Static Radial Rating
2580 lbf
11500 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
594 lbf
2640 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
1.29

e - ISO Factor2
0.45

Y - ISO Factor3
1.32

G1 - Heat Generation Factor (Roller-Raceway)
2.3

G2 - Heat Generation Factor (Rib-Roller End)
4.12

Cg - Geometry Factor4
0.0355
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 


timken-2TS-DM-24-OD-pin-cage-top-angle-view
Tapered Roller Bearings - 2TS (Matched Bearing Assembly)

Add To Cart Request Quote
<