All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Double Concentric Solid-Block Mounted Bearings > Double Concentric Piloted Flange Cartridge > Part Number QAACW18A308S  

Part Number QAACW18A308S, Double Concentric Piloted Flange Cartridge

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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 1/2 in

Shaft Size Type
Imperial

Full Timken Part Number
QAACW18A308SB
QAACW18A308SC
QAACW18A308SEB
QAACW18A308SEC
QAACW18A308SEM
QAACW18A308SEN
QAACW18A308SEO
QAACW18A308SET
QAACW18A308SM
QAACW18A308SN
QAACW18A308SO
QAACW18A308ST

Locking Style
Double Concentric

Housing Construction
Piloted Flange Cartridge

UPC Code
0883450017909
0883450017916
0883450017930
0883450017947
0883450017954
0883450017961
0883450017978
0883450017985
0883450194259
0883450194433
0883450271424
0883450271608


Dimensions

Dimension BC
8.63 in
219.2 mm

Dimension C
5.125 in
130.2 mm

Dimension D
7.13 in
181.1 mm

Dimension E
6.1 in
154.9 mm

Dimension B Exp
2.54 in
64.5 mm

Dimension B Fix
2.46 in
62.5 mm

Dimension F
10-1/4 in
260.4 mm

Dimension H
0.88 in
22.4 mm

Dimension J (Bolt Size)
0.75 in
20 mm

Dimension M
2.59 in
65.8 mm

Dimension L Exp
4.42 in
112.3 mm

Dimension L Fix
4.34 in
110.2 mm

Dimension RAA
0.85 in
21.6 mm

Dimension SAA
5.19 in
131.8 mm

Dimension G
7.375 in
187.3 mm

Dimension N
1.88 in
47.8 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
0.060 in
0.0024 mm

Pre Install Clearance Max
0.100 in
0.0039 mm


 MORE IMAGES 

·  Double Concentric Piloted Flange Cartridge - Dimensional Drawing



 DOWNLOADS 

Bearing Life Calculation Tool

Primary Sealing
(PDF, 280KB)

TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS



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