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Unit of Measure

Key Dimensions

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size

 N/A 3 3/16 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A TAAPH18K303SB TAAPH18K303SC TAAPH18K303SEB TAAPH18K303SEC TAAPH18K303SEM TAAPH18K303SEN TAAPH18K303SEO TAAPH18K303SET TAAPH18K303SM TAAPH18K303SN TAAPH18K303SO TAAPH18K303ST

Locking Style

 N/A Double Nut Tapered Adapter

Housing Construction

 N/A Four-Bolt Pillow Block

Other Dimensions

Dimension A

 N/A 4 in101.6 mm

Dimension B

 N/A 7.96 in202.1 mm

Dimension C

 N/A 4.71 in119.6 mm

Dimension D Min

 N/A 10 in254 mm

Dimension D Max

 N/A 11.75 in298.5 mm

Dimension E

 N/A 2.13 in54 mm

Dimension F

 N/A 13.75 in349.3 mm

Dimension G

 N/A 3.88 in98.4 mm

Dimension H

 N/A 1.63 in41.3 mm

Dimension J (Bolt Size)

 N/A 0.625 in16 mm

Dimension L

 N/A 3.98 in101.2 mm

Dimension MT

 N/A 2.23 in56.6 mm

Dimension RTT

 N/A 0.49 in12.3 mm

Dimension ST

 N/A 4.28 in108.83 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

Pre Install Clearance Min

 N/A 0.0024 in0.060 mm

Pre Install Clearance Max

 N/A 0.0039 in0.100 mm