All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Double Concentric Solid-Block Mounted Bearings > Double Concentric Flange Block > Part Number QAAFL18A308S  

Part Number QAAFL18A308S, Double Concentric Flange Block

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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
QAAFL18A308SB
QAAFL18A308SC
QAAFL18A308SEB
QAAFL18A308SEC
QAAFL18A308SEM
QAAFL18A308SEN
QAAFL18A308SEO
QAAFL18A308SET
QAAFL18A308SM
QAAFL18A308SN
QAAFL18A308SO
QAAFL18A308ST

Locking Style
Double Concentric

Housing Construction
Flange Block

UPC Code
0883450021401
0883450021418
0883450021432
0883450021449
0883450021456
0883450021463
0883450021470
0883450021487
0883450191722
0883450191883
0883450269087
0883450269247


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
8.38 in
212.9 mm

Dimension H
1.28 in
32.5 mm

Dimension J (Bolt Size)
0.75 in
20 mm

Dimension L Exp
4.27 in
108.5 mm

Dimension L Fix
4.19 in
106.4 mm

Dimension M
2.59 in
65.8 mm

Dimension N
3.4 in
86.4 mm

Dimension RAA
0.99 in
25.1 mm

Dimension SAA
5.18 in
131.6 mm

Dimension G
7.375 in
187.33 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

Primary Sealing
(PDF, 280KB)

TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS



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