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Unit of Measure

Specifications

Engineering Group

N/A Mounted Bearing

Bearing Number

N/A 22218

Shaft Size

N/A 3 7/16 in

Shaft Size Type

N/A Imperial

Full Timken Part Number

N/A QAPX18A307SB QAPX18A307SC QAPX18A307SEB QAPX18A307SEC QAPX18A307SEM QAPX18A307SEN QAPX18A307SEO QAPX18A307SET QAPX18A307SM QAPX18A307SMFG QAPX18A307SN QAPX18A307SO QAPX18A307ST

Locking Style

N/A Single Concentric

Housing Construction

N/A Four-Bolt Pillow Block

Dimensions

Dimension A

N/A 4 in101.6 mm

Dimension B

N/A 7.92 in201.2 mm

Dimension C

N/A 5.13 in130.3 mm

Dimension D Min

N/A 10.81 in274.6 mm

Dimension D Max

N/A 12.19 in309.6 mm

Dimension E

N/A 3 in76.2 mm

Dimension F

N/A 15 in381 mm

Dimension G

N/A 4.75 in120.7 mm

Dimension H

N/A 1.5 in38.1 mm

Dimension J (Bolt Size)

N/A 0.75 in20 mm

Dimension KA

N/A 1.44 in36.6 mm

Dimension L

N/A 4.97 in126.2 mm

Dimension M

N/A 2.59 in65.8 mm

Dimension RA

N/A 0.31 in7.9 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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