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Cylindrical Roller Radial Bearings - Single Row Standard
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Cylindrical Roller Bearings
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Cylindrical Roller Radial Bearings - Single Row Standard
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Part Number 250RU93AA774R3
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Part Number 250RU93AA774R3, Cylindrical Roller Radial Bearings - Single Row Standard
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Unit of Measure:
Imperial
Metric
Both
Specifications
·
Dimensions
·
Basic Load Ratings
·
Factors
·
Abutment and Fillet Dimensions
Specifications
Design Units
Metric
d - Bore
250
mm
Type
NU
Dimensions
D - Outer Diameter
520
mm
20.4724
in
C - Inner Ring Width
196.85
mm
7.7500
in
B - Outer Ring Width
196.85
mm
7.7500
in
Basic Load Ratings
C0 - Static Radial Rating
5470000
N
1230000
lbf
C - Dynamic Radial Rating
1
3520000
N
791000
lbf
1
Based on 1 x 10
6
L
10
life for the ISO life calculation method.
Factors
Reference Thermal Speed Rating (Grease)
610
rpm
Reference Thermal Speed Rating (Oil)
1
660
rpm
Cg - Geometry Factor
2
0.2091
1
See thermal speed ratings in the engineering section.
2
Geometry constant for Lubrication Life Adjustment Factor a3l.
Abutment and Fillet Dimensions
R - Inner Ring "To Clear" Radius
1
5.1
mm
0.200
in
r - Outer Ring "To Clear" Radius
2
5.1
mm
0.200
in
Da - Outer Ring Backing Diameter
0
mm
0.0000
in
1
Maximum housing fillet radius that bearing corners will clear.
2
Maximum shaft fillet radius that bearing corners will clear.
VIEW CAD DRAWING
·
3D
·
2D Sales Drawing
·
2D Sectional View
DOWNLOADS
Bearing Life Calculation Tool
Bearing Dimensional Tolerances
Tools and Guides for Engineers
Catalog and Technical Information - Cylindrical Roller Bearings
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The Timken Company. ©
The Timken Company.
©
The Timken Company.