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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Imperial > Part Number DX920827 - DX467768  
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Part Number DX920827 - DX467768, 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

Cone Part Number
DX920827

Cup Part Number
DX467768

Design Unit
Inch

Cage Material
Pin-Type


Dimensions

d - Bore
7.5 in
190.5 mm

D - Cup Outer Diameter
16.8750 in
428.625 mm

B - Cone Width
3.7500 in
95.250 mm

C - Cup Width
2.4375 in
61.913 mm

T - Bearing Width
4.1875 in
106.363 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
9.33 in
237 mm

db - Cone Backface Backing Diameter
9.45 in
240 mm

Da - Cup Frontface Backing Diameter
15.10 in
383.54 mm

Db - Cup Backface Backing Diameter
14.37 in
365.00 mm

Ab - Cage-Cone Frontface Clearance
0.64 in
16.3 mm

Aa - Cage-Cone Backface Clearance
0.84 in
21.3 mm

a - Effective Center Location3
0.51 in
13 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
108000 lbf
480000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
416000 lbf
1850000 N

C0 - Static Radial Rating
382000 lbf
1700000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
140000 lbf
623000 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
0.77

e - ISO Factor2
0.76

Y - ISO Factor3
0.79

G1 - Heat Generation Factor (Roller-Raceway)
827.7

G2 - Heat Generation Factor (Rib-Roller End)
77.3

Cg - Geometry Factor4
0.157
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



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