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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size

 N/A 3 1/2 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QAAFE18A308SBS QAAFE18A308SCS QAAFE18A308SEBS QAAFE18A308SECS QAAFE18A308SEMS QAAFE18A308SENS QAAFE18A308SEOS QAAFE18A308SETS QAAFE18A308SMS QAAFE18A308SNS QAAFE18A308SOS QAAFE18A308STS

Locking Style

 N/A Double Concentric

Housing Construction

 N/A Four-Bolt Square Flange

Dimensions

Dimension BC

 N/A 9.91 in

Dimension C

 N/A 5.13 in

Dimension D

 N/A 7.63 in

Dimension E

 N/A 7 in

Dimension F

 N/A 8.63 in

Dimension H

 N/A 1.88 in

Dimension J (Bolt Size)

 N/A 0.75 in

Dimension L Exp

 N/A 5.39 in

Dimension L Fix

 N/A 5.31 in

Dimension M

 N/A 2.59 in

Dimension N

 N/A 4.4 in

Dimension RAA

 N/A 0.13 in

Dimension SAA

 N/A 5.18 in

Radial and Thrust Factors

C0 - Static Load

 N/A 87200 lbf388000 N

C - Dynamic Load (Basic)

 N/A 79700 lbf355000 N

e - Geometry Factor

 N/A 0.23

Y1 - Geometry Factor

 N/A 2.90

Y2 - Geometry Factor

 N/A 4.31

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 1400 rpm

Oil Lubrication - T Seal

 N/A 2400 rpm

Oil Lubrication - B/C/O Seal

 N/A 1000 rpm

Grease Lubrication - M/N Seal

 N/A 1400 rpm

Grease Lubrication - T Seal

 N/A 2000 rpm

Grease Lubrication - B/C/O Seal

 N/A 1000 rpm

Engineering Bearing Attributes

Float

 N/A 0.083 in

Shaft Tolerance

 N/A 0.0030 in

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min

 N/A 0.0024

Eng Internal Radial Clearance - Max

 N/A 0.0039

Pre Install Clearance Min

 N/A 0.0024 in

Pre Install Clearance Max

 N/A 0.0039 in