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Double Concentric Two-Bolt Pillow Block
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All Product Types
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ENGINEERED BEARINGS
>
Mounted Bearings
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Mounted Solid-Block Spherical Roller Bearings
>
Double Concentric Solid-Block Mounted Bearings
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Double Concentric Two-Bolt Pillow Block
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Part Number QAASN18A303S
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Part Number QAASN18A303S, Double Concentric 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 3/16
in
Shaft Size Type
Imperial
Full Timken Part Number
QAASN18A303SB
QAASN18A303SC
QAASN18A303SEB
QAASN18A303SEC
QAASN18A303SEM
QAASN18A303SEN
QAASN18A303SEO
QAASN18A303SET
QAASN18A303SM
QAASN18A303SN
QAASN18A303SO
QAASN18A303ST
Locking Style
Double Concentric
Housing Construction
Two-Bolt Pillow Block
UPC Code
0883450350662
0883450350679
0883450350686
0883450350693
0883450350709
0883450350716
0883450350723
0883450350730
0883450350747
0883450350754
0883450350761
0883450350778
Dimensions
Dimension A
3.94
in
100
mm
Dimension B
7.87
in
200
mm
Dimension C
5.12
in
130
mm
Dimension D Min
10.98
in
279
mm
Dimension D Max
11.5
in
292
mm
Dimension F
13.58
in
345
mm
Dimension G
3.39
in
86
mm
Dimension H
1.54
in
39
mm
Dimension J (Bolt Size)
0.75
in
20
mm
Dimension L
4.29
in
109
mm
Dimension M
2.59
in
65.8
mm
Dimension RAA
0.91
in
23
mm
Dimension SAA
5.2
in
132
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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Eng Seal Temperatures
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©
The Timken Company. ©
The Timken Company.
©
The Timken Company.