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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size

 N/A 3 1/4 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QAMH18A304SB QAMH18A304SC QAMH18A304SEB QAMH18A304SEC QAMH18A304SEM QAMH18A304SEN QAMH18A304SEO QAMH18A304SET QAMH18A304SM QAMH18A304SN QAMH18A304SO QAMH18A304ST

Locking Style

 N/A Single Concentric

UPC Code

 N/A 0883450415958 0883450415965 0883450415972 0883450415989 0883450415996 0883450416009 0883450416016 0883450416023 0883450416030 0883450416047 0883450416054 0883450416061

Dimensions

Dimension A

 N/A 6.31 in160.3 mm

Dimension B

 N/A 10 1/4 in260.4 mm

Dimension C

 N/A 5.13 in130.3 mm

Dimension D

 N/A 7.88 in200.2 mm

Dimension E

 N/A 2.5 in63.5 mm

Dimension F

 N/A 3 in76.2 mm

Dimension G

 N/A 3 in76.2 mm

Dimension KA

 N/A 1.44 in36.6 mm

Dimension L

 N/A 3.91 in99.3 mm

Dimension M

 N/A 2.59 in65.8 mm

Dimension RA

 N/A 0.12 in3 mm

Dimension SA

 N/A 4.03 in102.4 mm

Thread Size J

 N/A 1 1/4-7UNC

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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