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 M348448WS - M348410  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number M348448WS - M348410, 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
M348400

Cone Part Number
M348448WS

Cup Part Number
M348410

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
9.7500 in
247.650 mm

D - Cup Outer Diameter
13.6250 in
346.075 mm

B - Cone Width
2.5 in
63.5 mm

C - Cup Width
2.0000 in
50.800 mm

T - Bearing Width
2.5001 in
63.503 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.25 in
6.35 mm

r - Cup Backface "To Clear" Radius2
0.250 in
6.35 mm

da - Cone Frontface Backing Diameter
10.35 in
263 mm

db - Cone Backface Backing Diameter
10.75 in
273 mm

Da - Cup Frontface Backing Diameter
13.11 in
332.99 mm

Db - Cup Backface Backing Diameter
12.64 in
321.06 mm

Ab - Cage-Cone Frontface Clearance
0.19 in
4.8 mm

Aa - Cage-Cone Backface Clearance
0.12 in
3 mm

a - Effective Center Location3
-0.05 in
-1.3 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
49500 lbf
220000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
191000 lbf
850000 N

C0 - Static Radial Rating
365000 lbf
1620000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
29100 lbf
130000 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
1.7

e - ISO Factor2
0.34

Y - ISO Factor3
1.75

G1 - Heat Generation Factor (Roller-Raceway)
1450.8

G2 - Heat Generation Factor (Rib-Roller End)
212.9

Cg - Geometry Factor4
0.148
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 


TimkenWirelessSensor
Timken® Wireless Sensor and Monitoring Solution

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

Add To Cart Request Quote
<