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Single 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
>
Single Concentric Solid-Block Mounted Bearings
>
Single Concentric Round Flange Block
>
Part Number QAFY18A308S
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Part Number QAFY18A308S, Single 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 1/2
in
Shaft Size Type
Imperial
Full Timken Part Number
QAFY18A308SB
QAFY18A308SC
QAFY18A308SEB
QAFY18A308SEC
QAFY18A308SEM
QAFY18A308SEN
QAFY18A308SEO
QAFY18A308SET
QAFY18A308SM
QAFY18A308SN
QAFY18A308SO
QAFY18A308ST
Locking Style
Single Concentric
Housing Construction
Round Flange
UPC Code
0883450042307
0883450042314
0883450042345
0883450042352
0883450042369
0883450042376
0883450042383
0883450192040
0883450192200
0883450192361
0883450269407
0883450269568
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 KA
1.44
in
36.6
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 RA
0.25
in
6.4
mm
Dimension SA
4.03
in
102.4
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.