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 6581X - 6520  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number 6581X - 6520, 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
6500

Cone Part Number
6581X

Cup Part Number
6520

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
3.5433 in
90 mm

D - Cup Outer Diameter
6.6870 in
169.850 mm

B - Cone Width
2.1693 in
55.100 mm

C - Cup Width
1.7500 in
44.450 mm

T - Bearing Width
2.1250 in
53.975 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.12 in
3 mm

r - Cup Backface "To Clear" Radius2
0.130 in
3.30 mm

da - Cone Frontface Backing Diameter
4.02 in
102 mm

db - Cone Backface Backing Diameter
4.29 in
109 mm

Da - Cup Frontface Backing Diameter
6.14 in
155.96 mm

Db - Cup Backface Backing Diameter
5.71 in
145.03 mm

Ab - Cage-Cone Frontface Clearance
0.06 in
1.5 mm

Aa - Cage-Cone Backface Clearance
0.15 in
3.8 mm

a - Effective Center Location3
-0.52 in
-13.2 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
25600 lbf
114000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
98800 lbf
439000 N

C0 - Static Radial Rating
118000 lbf
523000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
17600 lbf
78100 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
1.46

e - ISO Factor2
0.4

Y - ISO Factor3
1.5

Cg - Geometry Factor4
0.1040
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


Add To Cart Request Quote
<