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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 QAATU18A307SB QAATU18A307SC QAATU18A307SEB QAATU18A307SEC QAATU18A307SEM QAATU18A307SEN QAATU18A307SEO QAATU18A307SET QAATU18A307SM QAATU18A307SN QAATU18A307SO QAATU18A307ST

Locking Style

 N/A Double Concentric

Housing Construction

 N/A Take-Up

UPC Code

 N/A 0883450016124 0883450016193 0883450016223 0883450016292 0883450016322 0883450034203 0883450034210 0883450034272 0883450034289 0883450195584 0883450272773 0883450272933

Dimensions

Dimension A1

 N/A 3.63 in92.2 mm

Dimension C

 N/A 1 in25.4 mm

Dimension D

 N/A 7.63 in193.8 mm

Dimension E

 N/A 6.81 in173 mm

Dimension F

 N/A 1.81 in46 mm

Dimension G

 N/A 1.88 in47.8 mm

Dimension J

 N/A 4.88 in124 mm

Dimension L

 N/A 10.12 in257 mm

Dimension M

 N/A 2.59 in65.8 mm

Dimension N

 N/A 4.22 in107.2 mm

Dimension P

 N/A 6.25 in158.8 mm

Dimension S

 N/A 1.81 in46 mm

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 in2.03 mm

Shaft Tolerance

 N/A 0.0030 in0.076 mm

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 in0.060 mm

Pre Install Clearance Max

 N/A 0.0039 in0.100 mm