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Double Concentric Round Flange Block
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All Product Types
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ENGINEERED BEARINGS
>
Mounted Bearings
>
Mounted Solid-Block Spherical Roller Bearings
>
Double Concentric Solid-Block Mounted Bearings
>
Double Concentric Round Flange Block
>
Part Number QAAFY18A303S
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Part Number QAAFY18A303S, Double Concentric Round Flange Block
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Unit of Measure:
Imperial
Metric
Both
Specifications
·
Dimensions
·
Radial and Thrust Factors
·
Engineering Seal Speed
·
Engineering Bearing Attributes
·
Engineering Internal Radial Clearance
Specifications
Engineering Group
Mounted Bearing
Bearing Number
22218
Shaft Size
3 3/16
in
Shaft Size Type
Imperial
Full Timken Part Number
QAAFY18A303SB
QAAFY18A303SC
QAAFY18A303SEB
QAAFY18A303SEC
QAAFY18A303SEM
QAAFY18A303SEN
QAAFY18A303SEO
QAAFY18A303SET
QAAFY18A303SM
QAAFY18A303SN
QAAFY18A303SO
QAAFY18A303ST
Locking Style
Double Concentric
Housing Construction
Round Flange
UPC Code
0883450273589
0883450273596
0883450273602
0883450273619
0883450273626
0883450273749
0883450273756
0883450273763
0883450273770
0883450273787
0883450273794
0883450273800
Dimensions
Dimension BC
9.5
in
241.3
mm
Dimension C
5.13
in
130.3
mm
Dimension D
7.63
in
193.8
mm
Dimension E
6.72
in
170.7
mm
Dimension F
11.13
in
282.7
mm
Dimension H
1.13
in
28.7
mm
Dimension J (Bolt Size)
0.875
in
24
mm
Dimension L Exp
4.36
in
110.7
mm
Dimension L Fix
4.28
in
108.7
mm
Dimension M
2.59
in
65.8
mm
Dimension N
3.36
in
85.3
mm
Dimension RAA
0.9
in
22.9
mm
Dimension SAA
5.18
in
131.6
mm
Radial and Thrust Factors
C0 - Static Load
87200
lbf
388000
N
C - Dynamic Load (Basic)
79700
lbf
355000
N
e - Geometry Factor
0.23
Y1 - Geometry Factor
2.90
Y2 - Geometry Factor
4.31
Engineering Seal Speed
Oil Lubrication - M/N Seal
1400
rpm
Oil Lubrication - T Seal
2400
rpm
Oil Lubrication - B/C/O Seal
1000
rpm
Grease Lubrication - M/N Seal
1400
rpm
Grease Lubrication - T Seal
2000
rpm
Grease Lubrication - B/C/O Seal
1000
rpm
Engineering Bearing Attributes
Float
0.083
in
2.108
mm
Shaft Tolerance
0.0030
in
0.076
mm
Engineering Internal Radial Clearance
Eng Internal Radial Clearance - Min
0.0024
Eng Internal Radial Clearance - Max
0.0039
Pre Install Clearance Min
0.0024
in
0.060
mm
Pre Install Clearance Max
0.0039
in
0.100
mm
VIEW CAD DRAWING
·
3D
·
2D Front View
·
2D Left View
·
2D Sales Drawing
DOWNLOADS
Bearing Life Calculation Tool
Eng Seal Temperatures
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The Timken Company. ©
The Timken Company.
©
The Timken Company.