All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Eccentric Solid-Block Mounted Bearings > Eccentric Four-Bolt Pillow Block > Part Number QMPX20J312S  

Part Number QMPX20J312S, Eccentric Four-Bolt Pillow Block

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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
QMPX20J312SB
QMPX20J312SC
QMPX20J312SEB
QMPX20J312SEC
QMPX20J312SEM
QMPX20J312SEN
QMPX20J312SEO
QMPX20J312SET
QMPX20J312SM
QMPX20J312SN
QMPX20J312SO
QMPX20J312ST

Locking Style
Eccentric

Housing Construction
Four-Bolt Pillow Block

UPC Code
0883450094429
0883450094436
0883450094450
0883450094467
0883450094474
0883450094481
0883450094498
0883450094504
0883450159500
0883450160230
0883450252799
0883450253215


Dimensions

Dimension A
5 in
127 mm

Dimension B
9.44 in
239.8 mm

Dimension C
6 in
152.4 mm

Dimension D Min
12.5 in
317.5 mm

Dimension D Max
14 in
355.6 mm

Dimension E
3.5 in
88.9 mm

Dimension F
16.75 in
425.5 mm

Dimension G
5.5 in
139.7 mm

Dimension H
1.63 in
41.4 mm

Dimension J (Bolt Size)
0.875 in
24 mm

Dimension K
1.63 in
41.4 mm

Dimension L
5.72 in
145.3 mm

Dimension M
2.96 in
75.2 mm

Dimension R
0.34 in
8.6 mm

Dimension S
4.59 in
116.6 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