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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size

 N/A 3 7/16 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QASN18A307SB QASN18A307SC QASN18A307SEB QASN18A307SEC QASN18A307SEM QASN18A307SEN QASN18A307SEO QASN18A307SET QASN18A307SM QASN18A307SN QASN18A307SO QASN18A307ST

Locking Style

 N/A Single Concentric

Housing Construction

 N/A Two-Bolt Pillow Block

UPC Code

 N/A 0883450355230 0883450355247 0883450355254 0883450355261 0883450355278 0883450355285 0883450355292 0883450355308 0883450355315 0883450355322 0883450355339 0883450355346

Dimensions

Dimension A

 N/A 4.41 in

Dimension B

 N/A 8.35 in

Dimension C

 N/A 5.12 in

Dimension D Min

 N/A 11.42 in

Dimension D Max

 N/A 12.87 in

Dimension F

 N/A 14.96 in

Dimension G

 N/A 3.39 in

Dimension H

 N/A 1.54 in

Dimension J (Bolt Size)

 N/A 0.875 in

Dimension KA

 N/A 1.46 in

Dimension L

 N/A 4.29 in

Dimension M

 N/A 2.6 in

Dimension RA

 N/A 0.24 in

Dimension SA

 N/A 4.02 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