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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size

 N/A 3.2500 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QAFY18A304SB QAFY18A304SC QAFY18A304SEB QAFY18A304SEC QAFY18A304SEM QAFY18A304SEN QAFY18A304SEO QAFY18A304SET QAFY18A304SM QAFY18A304SN QAFY18A304SO QAFY18A304ST

Locking Style

 N/A Single Concentric

Housing Construction

 N/A Round Flange

UPC Code

 N/A 0883450330244 0883450330251 0883450330268 0883450330275 0883450330282 0883450330299 0883450330305 0883450330312 0883450330329 0883450330336 0883450330343 0883450330350

Dimensions

Dimension BC

 N/A 9.5 in241.3 mm

Dimension C

 N/A 5.13 in130.3 mm

Dimension D

 N/A 7.63 in193.8 mm

Dimension E

 N/A 6.72 in170.7 mm

Dimension F

 N/A 11.13 in282.7 mm

Dimension H

 N/A 1.13 in28.7 mm

Dimension J (Bolt Size)

 N/A 0.875 in24 mm

Dimension KA

 N/A 1.44 in36.6 mm

Dimension L Exp

 N/A 4.36 in110.7 mm

Dimension L Fix

 N/A 4.28 in108.7 mm

Dimension M

 N/A 2.59 in65.8 mm

Dimension N

 N/A 3.36 in85.3 mm

Dimension RA

 N/A 0.25 in6.4 mm

Dimension SA

 N/A 4.03 in102.4 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 0.083 in2.108 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
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