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Double Concentric Stainless Two-Bolt Pillow 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 Two-Bolt Pillow Block
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Part Number QAAP18A308S - Stainless
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Part Number QAAP18A308S - Stainless, Double Concentric Stainless Two-Bolt Pillow 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 1/2
in
Shaft Size Type
Imperial
Full Timken Part Number
QAAP18A308SBSS
QAAP18A308SCSS
QAAP18A308SEBSS
QAAP18A308SECSS
QAAP18A308SEMSS
QAAP18A308SENSS
QAAP18A308SEOSS
QAAP18A308SETSS
QAAP18A308SMSS
QAAP18A308SNSS
QAAP18A308SOSS
QAAP18A308STSS
Locking Style
Double Concentric
Housing Construction
Two-Bolt Pillow Block
UPC Code
0883450706049
0883450706056
0883450706063
0883450706070
0883450706087
0883450706094
0883450706100
0883450706117
0883450706124
0883450706131
0883450706148
0883450706155
Dimensions
Dimension A
3.75
in
95.3
mm
Dimension B
7.69
in
195.3
mm
Dimension C
5.13
in
130.3
mm
Dimension D Min
9.38
in
238.3
mm
Dimension D Max
11.25
in
285.8
mm
Dimension F
13.5
in
342.9
mm
Dimension G
3.41
in
86.6
mm
Dimension H
1.88
in
47.8
mm
Dimension J (Bolt Size)
0.875
in
24
mm
Dimension L
4.3
in
109.2
mm
Dimension M
2.59
in
65.8
mm
Dimension RAA
0.89
in
22.6
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
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The Timken Company. ©
The Timken Company.
©
The Timken Company.