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All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Double Concentric Solid-Block Mounted Bearings > Double Concentric Round Flange Block > Part Number QAAFY18A308S  
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Part Number QAAFY18A308S, Double Concentric Round Flange Block



 



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

QAAFY18A308SB
QAAFY18A308SC

QAAFY18A308SEB

QAAFY18A308SEC

QAAFY18A308SEM

QAAFY18A308SEN

QAAFY18A308SEO

QAAFY18A308SET

QAAFY18A308SM

QAAFY18A308SN

QAAFY18A308SO

QAAFY18A308ST

Locking Style

Double Concentric

Housing Construction

Round Flange

UPC Code

0883450023009
0883450023016

0883450023030

0883450023047

0883450023054

0883450023061

0883450023078

0883450023085

0883450192521

0883450192705

0883450269728

0883450269902


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 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 RAA

0.9 in
22.9
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



 DOWNLOADS 

Bearing Life Calculation Tool

Eng Seal Temperatures

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