Montage of Timken Bearing Products 
Search Catalog
        
 All Product Types    Tapered Roller Bearings - TS (Tapered Single) Metric
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) Metric > Part Number 32260  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number 32260, Tapered Roller Bearings - TS (Tapered Single) Metric


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
32260

Cone Part Number
X32260M

Cup Part Number
Y32260M

Design Unit
Metric

Cage Material
Stamped Steel

Related Assembly Number(s)
32260M-90KA1


Dimensions

d - Bore
300 mm
11.811 in

D - Cup Outer Diameter
540 mm
21.2598 in

B - Cone Width
140 mm
5.5118 in

C - Cup Width
115 mm
4.5276 in

T - Bearing Width
149 mm
5.8661 in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
6 mm
0.236 in

r - Cup Backface "To Clear" Radius2
5 mm
0.197 in

da - Cone Frontface Backing Diameter
345 mm
13.58 in

db - Cone Backface Backing Diameter
359 mm
14.13 in

Da - Cup Frontface Backing Diameter
511 mm
20.12 in

Db - Cup Backface Backing Diameter
483.1 mm
19.02 in

Ab - Cage-Cone Frontface Clearance
8.9 mm
0.35 in

Aa - Cage-Cone Backface Clearance
15.8 mm
0.62 in

a - Effective Center Location3
-17.8 mm
-0.7 in
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
802000 N
180000 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
3090000 N
695000 lbf

C0 - Static Radial Rating
5310000 N
1190000 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
597000 N
134000 lbf
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
1.34

e - ISO Factor2
0.43

Y - ISO Factor3
1.38

G1 - Heat Generation Factor (Roller-Raceway)
3303.4

G2 - Heat Generation Factor (Rib-Roller End)
165.8

Cg - Geometry Factor4
0.212
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
<