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 H859049 - H859010  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number H859049 - H859010, 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
H859000

Cone Part Number
H859049

Cup Part Number
H859010

Design Unit
Inch

Cage Material
Stamped Steel

Related Assembly Number(s)
H859049-903A2


Dimensions

d - Bore
12.3750 in
314.325 mm

D - Cup Outer Diameter
19.5000 in
495.300 mm

B - Cone Width
4.6875 in
119.063 mm

C - Cup Width
3.5000 in
88.900 mm

T - Bearing Width
4.7500 in
120.650 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
13.57 in
344.8 mm

db - Cone Backface Backing Diameter
14.21 in
361 mm

Da - Cup Frontface Backing Diameter
18.68 in
474.47 mm

Db - Cup Backface Backing Diameter
17.28 in
438.91 mm

Ab - Cage-Cone Frontface Clearance
0.21 in
5.3 mm

Aa - Cage-Cone Backface Clearance
0.66 in
16.8 mm

a - Effective Center Location3
0.33 in
8.4 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
114000 lbf
508000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
440000 lbf
1960000 N

C0 - Static Radial Rating
889000 lbf
3950000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
113000 lbf
500000 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
1.01

e - ISO Factor2
0.58

Y - ISO Factor3
1.04

G1 - Heat Generation Factor (Roller-Raceway)
2954.9

G2 - Heat Generation Factor (Rib-Roller End)
250.1

Cg - Geometry Factor4
0.222
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
<