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Double Concentric 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 Flange Block
>
Part Number QAAF18A304S
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Part Number QAAF18A304S, Double Concentric 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 1/4
in
Shaft Size Type
Imperial
Full Timken Part Number
QAAF18A304SB
QAAF18A304SC
QAAF18A304SEB
QAAF18A304SEC
QAAF18A304SEM
QAAF18A304SEN
QAAF18A304SEO
QAAF18A304SET
QAAF18A304SM
QAAF18A304SN
QAAF18A304SO
QAAF18A304ST
Locking Style
Double Concentric
Housing Construction
Flange Block
UPC Code
0883450118675
0883450118682
0883450118705
0883450118712
0883450118729
0883450118736
0883450118743
0883450118750
0883450118774
0883450118781
0883450118804
0883450118811
Dimensions
Dimension BC
9.91
in
251.7
mm
Dimension C
5.13
in
130.3
mm
Dimension D
7.63
in
193.8
mm
Dimension E
7
in
177.8
mm
Dimension F
8.63
in
219.2
mm
Dimension H
1.31
in
33.3
mm
Dimension J (Bolt Size)
0.75
in
20
mm
Dimension L Exp
4.3
in
109.2
mm
Dimension L Fix
4.22
in
107.2
mm
Dimension M
2.59
in
65.8
mm
Dimension N
3.31
in
84.1
mm
Dimension RAA
0.96
in
24.4
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
TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS
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The Timken Company. ©
The Timken Company.
©
The Timken Company.