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 QAAPF18A307S  

Part Number QAAPF18A307S, 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
QAAPF18A307SB
QAAPF18A307SC
QAAPF18A307SEB
QAAPF18A307SEC
QAAPF18A307SEM
QAAPF18A307SEN
QAAPF18A307SEO
QAAPF18A307SET
QAAPF18A307SETHT
QAAPF18A307SM
QAAPF18A307SN
QAAPF18A307SNHT
QAAPF18A307SO
QAAPF18A307ST
QAAPF18A307STHT

Locking Style
Double Concentric

Housing Construction
Four-Bolt Pillow Block

UPC Code
0883450027502
0883450027519
0883450027533
0883450027540
0883450027557
0883450027564
0883450027571
0883450027588
0883450189545
0883450189675
0883450266888
0883450267021
0883450432948
0883450494243
0883450494366


Dimensions

Dimension A
3.75 in
95.3 mm

Dimension B
7.69 in
195.3 mm

Dimension C
5.13 in
130.3 mm

Dimension D Min
8.88 in
225.6 mm

Dimension D Max
10.88 in
276.4 mm

Dimension E
2 in
50.8 mm

Dimension F
12.3 in
312.4 mm

Dimension G
3.75 in
95.3 mm

Dimension H
1.56 in
39.6 mm

Dimension J (Bolt Size)
0.755 in
20 mm

Dimension L
4.47 in
113.5 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