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 33118  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number 33118, 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
33118M

Cone Part Number
X33118M

Cup Part Number
Y33118M

Design Unit
Metric

Cage Material
Stamped Steel

Related Assembly Number(s)
33118-9X026
33118-9X245
33118M-90KM1


Dimensions

d - Bore
90 mm
3.5433 in

D - Cup Outer Diameter
150 mm
5.9055 in

B - Cone Width
45 mm
1.7717 in

C - Cup Width
35 mm
1.378 in

T - Bearing Width
45 mm
1.7717 in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
2.540 mm
0.1 in

r - Cup Backface "To Clear" Radius2
2.03 mm
0.08 in

da - Cone Frontface Backing Diameter
100 mm
3.94 in

db - Cone Backface Backing Diameter
108 mm
4.25 in

Da - Cup Frontface Backing Diameter
146.05 mm
5.75 in

Db - Cup Backface Backing Diameter
134.87 mm
5.31 in

Ab - Cage-Cone Frontface Clearance
3.8 mm
0.15 in

Aa - Cage-Cone Backface Clearance
4.8 mm
0.19 in

a - Effective Center Location3
-9.4 mm
-0.37 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
94100 N
21200 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
363000 N
81600 lbf

C0 - Static Radial Rating
447000 N
100000 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
64000 N
14400 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
1.47

e - ISO Factor2
0.4

Y - ISO Factor3
1.51

G1 - Heat Generation Factor (Roller-Raceway)
180.1

G2 - Heat Generation Factor (Rib-Roller End)
43.2

Cg - Geometry Factor4
0.0942
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
<