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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 Stainless Four Bolt Square Flange Block > Part Number QAAFE18A303SS  
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Part Number QAAFE18A303SS, Double Concentric Stainless Four Bolt Square 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 3/16 in

Shaft Size Type

Imperial

Full Timken Part Number

QAAFE18A303SBS
QAAFE18A303SCS

QAAFE18A303SEBS

QAAFE18A303SECS

QAAFE18A303SEMS

QAAFE18A303SENS

QAAFE18A303SEOS

QAAFE18A303SETS

QAAFE18A303SMS

QAAFE18A303SNS

QAAFE18A303SOS

QAAFE18A303STS

Locking Style

Double Concentric

Housing Construction

Four-Bolt Square Flange


Dimensions

Dimension BC

9.91 in
251.7
mm

Dimension C

5.13 in
130.3
mm

Dimension D

7.63 in
193.8
mm

Dimension E

7 in
177.8
mm

Dimension F

8.63 in
219.2
mm

Dimension H

1.88 in
47.6
mm

Dimension J (Bolt Size)

0.75 in
20
mm

Dimension L Exp

5.39 in
136.9
mm

Dimension L Fix

5.31 in
135
mm

Dimension M

2.59 in
65.8
mm

Dimension N

4.4 in
111.8
mm

Dimension RAA

0.13 in
3.3
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

TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS

Stainless-Solid-Block-Mounted-SRB-Sell-Sheet_11229-POD
(PDF, 175KB)


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