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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size

 N/A 3 1/4 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QAMC18A304SB QAMC18A304SC QAMC18A304SEB QAMC18A304SEC QAMC18A304SEM QAMC18A304SEN QAMC18A304SEO QAMC18A304SET QAMC18A304SM QAMC18A304SN QAMC18A304SO QAMC18A304ST

Locking Style

 N/A Single Concentric

Housing Construction

 N/A Cartridge

UPC Code

 N/A 883450330602 883450330619 883450330626 883450330633 883450330640 883450330657 883450330664 883450330671 883450330688 883450330695 883450330701 883450330718

Dimensions

Dimension A

 N/A 0.59 in

Dimension B

 N/A 1.06 in

Dimension C

 N/A 5.13 in

Dimension D

 N/A 0.23 in

Dimension F

 N/A 6.75 in

Dimension G

 N/A 3.45 in

Dimension KA

 N/A 1.44 in

Dimension L Exp

 N/A 4.42 in

Dimension L Fix

 N/A 4.34 in

Dimension M

 N/A 2.59 in

Dimension RA

 N/A 0.29 in

Dimension SA

 N/A 4.03 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