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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 QMPX18J308SB QMPX18J308SC QMPX18J308SEB QMPX18J308SEC QMPX18J308SEM QMPX18J308SEN QMPX18J308SEO QMPX18J308SET QMPX18J308SM QMPX18J308SN QMPX18J308SO QMPX18J308ST

Locking Style

 N/A Eccentric

Housing Construction

 N/A Four-Bolt Pillow Block

UPC Code

 N/A 0883450094122 0883450094139 0883450094153 0883450094160 0883450094177 0883450094184 0883450094191 0883450094207 0883450159470 0883450160209 0883450252768 0883450253185

Dimensions

Dimension A

 N/A 4 in

Dimension B

 N/A 7.92 in

Dimension C

 N/A 4.76 in

Dimension D Min

 N/A 10.81 in

Dimension D Max

 N/A 12.19 in

Dimension E

 N/A 3 in

Dimension F

 N/A 15 in

Dimension G

 N/A 4.75 in

Dimension H

 N/A 1.5 in

Dimension J (Bolt Size)

 N/A 0.75 in

Dimension K

 N/A 1.44 in

Dimension L

 N/A 4.96 in

Dimension M

 N/A 2.59 in

Dimension R

 N/A 0.32 in

Dimension S

 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