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All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Single Concentric Solid-Block Mounted Bearings > Single Concentric Two-Bolt Pillow Block > Part Number QAPL18A308S  
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Part Number QAPL18A308S, Single Concentric Two-Bolt Pillow 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

QAPL18A308SB
QAPL18A308SC

QAPL18A308SEB

QAPL18A308SEC

QAPL18A308SEM

QAPL18A308SEN

QAPL18A308SEO

QAPL18A308SET

QAPL18A308SM

QAPL18A308SN

QAPL18A308SO

QAPL18A308ST

Locking Style

Single Concentric

Housing Construction

Two-Bolt Pillow Block

UPC Code

0883450048200
0883450048217

0883450048231

0883450048248

0883450048255

0883450048262

0883450048279

0883450048286

0883450188586

0883450188746

0883450266086

0883450266246


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

9.25 in
235
mm

Dimension D Max

10.75 in
273.1
mm

Dimension F

13 in
330.2
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 KA

1.44 in
36.6
mm

Dimension L

4.3 in
109.2
mm

Dimension M

2.59 in
65.8
mm

Dimension RA

0.27 in
6.9
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



 DOWNLOADS 

Bearing Life Calculation Tool

Primary Sealing
(PDF, 411KB)

Secondary Sealing
(PDF, 720KB)

TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS


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