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 QAASN18A307S  

Part Number QAASN18A307S, 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
22218

Shaft Size
3 7/16 in

Shaft Size Type
Imperial

Full Timken Part Number
QAASN18A307SB
QAASN18A307SC
QAASN18A307SEB
QAASN18A307SEC
QAASN18A307SEM
QAASN18A307SEN
QAASN18A307SEO
QAASN18A307SET
QAASN18A307SM
QAASN18A307SN
QAASN18A307SO
QAASN18A307ST

Locking Style
Double Concentric

Housing Construction
Two-Bolt Pillow Block

UPC Code
0883450350907
0883450350914
0883450350921
0883450350938
0883450350945
0883450350952
0883450350969
0883450350976
0883450350983
0883450350990
0883450351003
0883450351010


Dimensions

Dimension A
4.41 in
112 mm

Dimension B
8.35 in
212 mm

Dimension C
5.12 in
130 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 L
4.29 in
109 mm

Dimension M
2.59 in
65.8 mm

Dimension RAA
0.91 in
23 mm

Dimension SAA
5.2 in
132 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