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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 QMSN20J312S  
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Part Number QMSN20J312S, 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
22220

Shaft Size
3 3/4 in

Shaft Size Type
Imperial

Full Timken Part Number
QMSN20J312SB
QMSN20J312SC
QMSN20J312SEB
QMSN20J312SEC
QMSN20J312SEM
QMSN20J312SEN
QMSN20J312SEO
QMSN20J312SET
QMSN20J312SM
QMSN20J312SN
QMSN20J312SO
QMSN20J312ST

Locking Style
Eccentric

Housing Construction
Two-Bolt Pillow Block

UPC Code
0883450307062
0883450307079
0883450307086
0883450307093
0883450307109
0883450307116
0883450307123
0883450307130
0883450307147
0883450307154
0883450307161
0883450307178


Dimensions

Dimension A
4.92 in
125 mm

Dimension B
9.49 in
241 mm

Dimension C
5.98 in
152 mm

Dimension D Min
12.56 in
319 mm

Dimension D Max
14.41 in
366 mm

Dimension F
16.14 in
410 mm

Dimension G
3.98 in
101 mm

Dimension H
1.97 in
50 mm

Dimension J (Bolt Size)
0.875 in
24 mm

Dimension K
1.61 in
41 mm

Dimension L
4.96 in
126 mm

Dimension M
2.95 in
75 mm

Dimension R
0.35 in
9 mm

Dimension S
4.57 in
116 mm


Radial and Thrust Factors

C0 - Static Load
113000 lbf
502000 N

C - Dynamic Load (Basic)
97700 lbf
435000 N

e - Geometry Factor
0.24

Y1 - Geometry Factor
2.85

Y2 - Geometry Factor
4.24


Engineering Seal Speed

Oil Lubrication - M/N Seal
1200 rpm

Oil Lubrication - T Seal
2000 rpm

Oil Lubrication - B/C/O Seal
900 rpm

Grease Lubrication - M/N Seal
1200 rpm

Grease Lubrication - T Seal
1600 rpm

Grease Lubrication - B/C/O Seal
900 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
0.0030

Eng Internal Radial Clearance - Max
0.0047

Pre Install Clearance Min
0.0030 in
0.075 mm

Pre Install Clearance Max
0.0047 in
0.120 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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