All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Double Concentric Solid-Block Mounted Bearings > Double Concentric Two-Bolt Pillow Block > Part Number QAASN20A400S  

Part Number QAASN20A400S, Double Concentric Two-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
4 in

Shaft Size Type
Imperial

Full Timken Part Number
QAASN20A400SB
QAASN20A400SC
QAASN20A400SEB
QAASN20A400SEC
QAASN20A400SEM
QAASN20A400SEN
QAASN20A400SEO
QAASN20A400SET
QAASN20A400SM
QAASN20A400SN
QAASN20A400SO
QAASN20A400ST

Locking Style
Double Concentric

Housing Construction
Two-Bolt Pillow Block

UPC Code
0883450351621
0883450351638
0883450351645
0883450351652
0883450351669
0883450351676
0883450351683
0883450351690
0883450351706
0883450351713
0883450351720
0883450351737


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 L
4.96 in
126 mm

Dimension M
2.97 in
75.4 mm

Dimension RAA
0.98 in
25 mm

Dimension SAA
5.91 in
150 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