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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 TADI18K303SB TADI18K303SC TADI18K303SEB TADI18K303SEC TADI18K303SEM TADI18K303SEN TADI18K303SEO TADI18K303SET TADI18K303SM TADI18K303SN TADI18K303SO TADI18K303ST

Locking Style

 N/A Tapered Adapter

Housing Construction

 N/A Two-Bolt Pillow Block

Other Dimensions

Dimension A

 N/A 4.5 in114.3 mm

Dimension B

 N/A 8.63 in219.2 mm

Dimension C

 N/A 4.71 in119.6 mm

Dimension D Min

 N/A 12.81 in325.4 mm

Dimension D Max

 N/A 13.81 in350.8 mm

Dimension F

 N/A 16 in406.4 mm

Dimension G

 N/A 3.14 in79.7 mm

Dimension H

 N/A 1.56 in39.6 mm

Dimension J (Bolt Size)

 N/A 0.875 in24 mm

Dimension L

 N/A 3.68 in93.3 mm

Dimension M

 N/A 2.05 in52.1 mm

Dimension S

 N/A 3.39 in86.1 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 0.08 in2.03 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