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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 Take-Up Block > Part Number QATU18A303S  
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Part Number QATU18A303S, Single Concentric Take-Up 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

QATU18A303SB
QATU18A303SC

QATU18A303SEB

QATU18A303SEC

QATU18A303SEM

QATU18A303SEN

QATU18A303SEO

QATU18A303SET

QATU18A303SM

QATU18A303SN

QATU18A303SO

QATU18A303ST

Locking Style

Single Concentric

Housing Construction

Take-Up

UPC Code

0883450334440
0883450334457

0883450334464

0883450334471

0883450334488

0883450334495

0883450334501

0883450334518

0883450334525

0883450334532

0883450334549

0883450334556


Dimensions

Dimension A1

3.63 in
92.2
mm

Dimension C

1 in
25.4
mm

Dimension D

7.63 in
193.8
mm

Dimension E

6.81 in
173
mm

Dimension F

1.81 in
46
mm

Dimension G

1.88 in
47.8
mm

Dimension J

4.88 in
124
mm

Dimension L

10.12 in
257
mm

Dimension KA

1.44 in
36.6
mm

Dimension M

2.59 in
65.8
mm

Dimension N

4.22 in
107.2
mm

Dimension P

6.25 in
158.8
mm

Dimension S

1.81 in
46
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

0.08 in
2.03
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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