All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Double Concentric Solid-Block Mounted Bearings > Double Concentric Four-Bolt Pillow Block > Part Number QAAPX18A307S  

Part Number QAAPX18A307S, Double Concentric 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
22218

Shaft Size
3 7/16 in

Shaft Size Type
Imperial

Full Timken Part Number
QAAPX18A307SB
QAAPX18A307SC
QAAPX18A307SEB
QAAPX18A307SEC
QAAPX18A307SEM
QAAPX18A307SEN
QAAPX18A307SEO
QAAPX18A307SET
QAAPX18A307SETNG
QAAPX18A307SM
QAAPX18A307SN
QAAPX18A307SO
QAAPX18A307ST

Locking Style
Double Concentric

Housing Construction
Four-Bolt Pillow Block

UPC Code
0883450012355
0883450012362
0883450012379
0883450012386
0883450012393
0883450012409
0883450012416
0883450012423
0883450012430
0883450012447
0883450267663
0883450267885
0883450953757


Dimensions

Dimension A
4 in
101.6 mm

Dimension B
7.92 in
201.2 mm

Dimension C
5.13 in
130.3 mm

Dimension D Min
10.81 in
274.6 mm

Dimension D Max
12.19 in
309.6 mm

Dimension E
3 in
76.2 mm

Dimension F
15 in
381 mm

Dimension G
4.75 in
120.7 mm

Dimension H
1.5 in
38.1 mm

Dimension J (Bolt Size)
0.75 in
20 mm

Dimension L
4.97 in
126.2 mm

Dimension M
2.59 in
65.8 mm

Dimension RAA
0.84 in
21.3 mm

Dimension SAA
5.18 in
131.6 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