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Unit of Measure

Specifications

Engineering Group

N/A Mounted Bearing

Bearing Number

N/A 22218

Shaft Size

N/A 3 1/2 in

Shaft Size Type

N/A Imperial

Full Timken Part Number

N/A QAFY18A308SB QAFY18A308SC QAFY18A308SEB QAFY18A308SEC QAFY18A308SEM QAFY18A308SEN QAFY18A308SEO QAFY18A308SET QAFY18A308SM QAFY18A308SN QAFY18A308SO QAFY18A308ST

Locking Style

N/A Single Concentric

Housing Construction

N/A Round Flange

UPC Code

N/A 0883450042307 0883450042314 0883450042345 0883450042352 0883450042369 0883450042376 0883450042383 0883450192040 0883450192200 0883450192361 0883450269407 0883450269568

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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