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All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Eccentric Solid-Block Mounted Bearings > Eccentric Two-Bolt Pillow Block > Part Number QMSN18J308S  
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Part Number QMSN18J308S, Eccentric 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
QMSN18J308SB
QMSN18J308SC
QMSN18J308SEB
QMSN18J308SEC
QMSN18J308SEM
QMSN18J308SEN
QMSN18J308SEO
QMSN18J308SET
QMSN18J308SM
QMSN18J308SN
QMSN18J308SO
QMSN18J308ST

Locking Style
Eccentric

Housing Construction
Two-Bolt Pillow Block

UPC Code
0883450098625
0883450098632
0883450098656
0883450098663
0883450098670
0883450098687
0883450098694
0883450098700
0883450161046
0883450161404
0883450253703
0883450254090


Dimensions

Dimension A
4.41 in
112 mm

Dimension B
8.35 in
212 mm

Dimension C
4.76 in
121 mm

Dimension D Min
11.42 in
290 mm

Dimension D Max
12.87 in
327 mm

Dimension F
14.96 in
380 mm

Dimension G
3.39 in
86 mm

Dimension H
1.54 in
39 mm

Dimension J (Bolt Size)
0.875 in
24 mm

Dimension K
1.46 in
37 mm

Dimension L
4.29 in
109 mm

Dimension M
2.6 in
66 mm

Dimension R
0.28 in
7 mm

Dimension S
4.06 in
103 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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