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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 QAATU18A304SB QAATU18A304SC QAATU18A304SEB QAATU18A304SEC QAATU18A304SEM QAATU18A304SEN QAATU18A304SEO QAATU18A304SET QAATU18A304SM QAATU18A304SN QAATU18A304SO QAATU18A304ST

Locking Style

 N/A Double Concentric

Housing Construction

 N/A Take-Up

UPC Code

 N/A 0883450323581 0883450323598 0883450323604 0883450323611 0883450323628 0883450323635 0883450323642 0883450323659 0883450323666 0883450323673 0883450323680 0883450323697

Dimensions

Dimension A1

 N/A 3.63 in

Dimension C

 N/A 1 in

Dimension D

 N/A 7.63 in

Dimension E

 N/A 6.81 in

Dimension F

 N/A 1.81 in

Dimension G

 N/A 1.88 in

Dimension J

 N/A 4.88 in

Dimension L

 N/A 10.12 in

Dimension M

 N/A 2.59 in

Dimension N

 N/A 4.22 in

Dimension P

 N/A 6.25 in

Dimension S

 N/A 1.81 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 0.08 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