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Tapered Roller Bearings - Double Tapered Cones - Imperial
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Tapered Roller Bearings
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Tapered Roller Bearings - Double Cones
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Tapered Roller Bearings - Double Tapered Cones - Imperial
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Part Number EE420800D
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Part Number EE420800D, Tapered Roller Bearings - Double Tapered Cones - Imperial
TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.
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Unit of Measure:
Imperial
Metric
Both
Specifications
·
Dimensions
·
Abutment and Fillet Dimensions
·
Basic Load Ratings
·
Factors
Specifications
Series
420000
Cone Part Number
EE420800D
Design Units
Imperial
Cage Type
Stamped Steel
C1 - Dynamic Radial Rating (1 million revolutions)
1
248000
lbf
1100000
N
C0 - Static Radial Rating
409000
lbf
1820000
N
1
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
Dimensions
d - Cone Bore
8
in
203.2
mm
B - Double Cone Width
6.0000
in
152.400
mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius
1
0.13
in
3.300
mm
da - Cone Frontface Backing Diameter
9.06
in
230
mm
Ab - Cage-Cone Frontface Clearance
0.14
in
3.6
mm
1
These maximum fillet radii will be cleared by the bearing corners.
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)
1
64300
lbf
286000
N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)
2
432000
lbf
1920000
N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)
3
112000
lbf
498000
N
C
a90
- Dynamic Thrust Rating (90 million revolutions)
4
44200
lbf
197000
N
1
Based on 90 x 10
6
revolutions L
10
life, for The Timken Company life calculation method. C
90
and C
a90
are radial and thrust values.
2
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
3
Based on 90 x 10
6
revolutions L
10
life, for The Timken Company life calculation method. C
90
and C
a90
are radial and thrust values for a single-row, C
90(2)
is the two-row radial value.
4
Based on 90 x 10
6
revolutions L
10
life, for The Timken Company life calculation method. C
90
and C
a90
are radial and thrust values for a single-row, C
90(2)
is the two-row radial value.
Factors
K - Factor
1
1.45
G1 - Heat Generation Factor (Roller-Raceway)
1150
G2 - Heat Generation Factor (Rib-Roller End)
128
Cg - Geometry Factor
2
0.145
1
These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2
Geometry constant for Lubrication Life Adjustment Factor a3l.
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·
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·
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©
The Timken Company. ©
The Timken Company.
©
The Timken Company.