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Double Concentric Stainless Four Bolt Square Flange Block
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ENGINEERED BEARINGS
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Mounted Bearings
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Mounted Solid-Block Spherical Roller Bearings
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Double Concentric Solid-Block Mounted Bearings
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Double Concentric Stainless Four Bolt Square Flange Block
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Part Number QAAFE18A308SS
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Part Number QAAFE18A308SS, Double Concentric Stainless Four Bolt Square Flange Block
larger image
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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 1/2
in
Shaft Size Type
Imperial
Full Timken Part Number
QAAFE18A308SBS
QAAFE18A308SCS
QAAFE18A308SEBS
QAAFE18A308SECS
QAAFE18A308SEMS
QAAFE18A308SENS
QAAFE18A308SEOS
QAAFE18A308SETS
QAAFE18A308SMS
QAAFE18A308SNS
QAAFE18A308SOS
QAAFE18A308STS
Locking Style
Double Concentric
Housing Construction
Four-Bolt Square Flange
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
1.88
in
47.6
mm
Dimension J (Bolt Size)
0.75
in
20
mm
Dimension L Exp
5.39
in
136.9
mm
Dimension L Fix
5.31
in
135
mm
Dimension M
2.59
in
65.8
mm
Dimension N
4.4
in
111.8
mm
Dimension RAA
0.13
in
3.3
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
Stainless-Solid-Block-Mounted-SRB-Sell-Sheet_11229-POD
(PDF, 175KB)
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©
The Timken Company. ©
The Timken Company.
©
The Timken Company.