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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 QAP18A308SBSS QAP18A308SCSS QAP18A308SEBSS QAP18A308SECSS QAP18A308SEMSS QAP18A308SENSS QAP18A308SEOSS QAP18A308SETSS QAP18A308SMSS QAP18A308SNSS QAP18A308SOSS QAP18A308STSS

Locking Style

 N/A Single Concentric

Housing Construction

 N/A Two-Bolt Pillow Block

UPC Code

 N/A 0883450705929 0883450705936 0883450705943 0883450705950 0883450705967 0883450705974 0883450705981 0883450705998 0883450706001 0883450706018 0883450706025 0883450706032

Dimensions

Dimension A

 N/A 3.75 in

Dimension B

 N/A 7.69 in

Dimension C

 N/A 5.13 in

Dimension D Min

 N/A 9.38 in

Dimension D Max

 N/A 11.25 in

Dimension F

 N/A 13.5 in

Dimension G

 N/A 3.41 in

Dimension H

 N/A 1.88 in

Dimension J (Bolt Size)

 N/A 0.875 in

Dimension KA

 N/A 1.44 in

Dimension L

 N/A 4.3 in

Dimension M

 N/A 2.59 in

Dimension RA

 N/A 0.27 in

Dimension SA

 N/A 4.03 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