Montage of Timken Bearing Products
Search Catalog
        
 All Product Types    Tapered Roller Bearings - Single Cones - 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 - Single Cones > Tapered Roller Bearings - Single Cones - Imperial > Part Number NA456SW  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number NA456SW, Tapered Roller Bearings - Single Cones - 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

455

Cone Part Number

NA456SW

Design Units

Imperial

Cage Type

Stamped Steel


Dimensions

d - Cone Bore

2 in
50.8
mm

B - Cone Width

1.4688 in
37.308
mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1

0.14 in
3.556
mm

da - Cone Frontface Backing Diameter

0 in
0
mm

db - Cone Backface Backing Diameter

2.56 in
65
mm

Ab - Cage-Cone Frontface Clearance

-0.05 in
-1.3
mm

Aa - Cage-Cone Backface Clearance

0.26 in
6.6
mm

a - Effective Center Location2

-0.46 in
-11.7
mm
1 These maximum fillet radii will be cleared by the bearing corners.
2 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1

7900 lbf
35200
N

C1 - Dynamic Radial Rating (1 million revolutions)2

30500 lbf
136000
N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3

4540 lbf
20200
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

1.74

G1 - Heat Generation Factor (Roller-Raceway)

58.6

G2 - Heat Generation Factor (Rib-Roller End)

17.1
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances


Add To Cart Request Quote
<