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Unit of Measure

Key Dimensions

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22220

Shaft Size

 N/A 3 1/2 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A TAFB20K308SB TAFB20K308SC TAFB20K308SEB TAFB20K308SEC TAFB20K308SEM TAFB20K308SEN TAFB20K308SEO TAFB20K308SET TAFB20K308SM TAFB20K308SN TAFB20K308SO TAFB20K308ST

Locking Style

 N/A Tapered Adapter

Housing Construction

 N/A Four-Bolt Square Flange

UPC Code

 N/A 0883450119771 0883450119788 0883450119801 0883450119818 0883450119825 0883450119832 0883450119849 0883450119856 0883450199377 0883450199575 0883450277013 0883450277211

Other Dimensions

Dimension A1

 N/A 13.0 in330.2 mm

Dimension BC

 N/A 11.02 in279.9 mm

Dimension C

 N/A 5.12 in130 mm

Dimension D

 N/A 9.06 in230.1 mm

Dimension E

 N/A 7.79 in197.9 mm

Dimension F

 N/A 9.76 in247.9 mm

Dimension H

 N/A 1.13 in28.7 mm

Dimension J (Bolt Size)

 N/A 0.75 in20 mm

Dimension G

 N/A 1.25 in31.75 mm

Dimension L Fix

 N/A 4.16 in105.7 mm

Dimension M

 N/A 2.3 in58.4 mm

Dimension N

 N/A 3.71 in94.2 mm

Dimension S

 N/A 3.82 in97 mm

Radial and Thrust Factors

C0 - Static Load

 N/A 113000 lbf502000 N

C - Dynamic Load (Basic)

 N/A 97700 lbf435000 N

e - Geometry Factor

 N/A 0.26

Y1 - Geometry Factor

 N/A 2.55

Y2 - Geometry Factor

 N/A 3.8

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 1200 rpm

Oil Lubrication - T Seal

 N/A 2000 rpm

Oil Lubrication - B/C/O Seal

 N/A 900 rpm

Grease Lubrication - M/N Seal

 N/A 1200 rpm

Grease Lubrication - T Seal

 N/A 1600 rpm

Grease Lubrication - B/C/O Seal

 N/A 900 rpm

Engineering Bearing Attributes

Float

 N/A 0.083 in2.108 mm

Shaft Tolerance

 N/A 0.0040 in0.102 mm

Engineering Internal Radial Clearance

Pre Install Clearance Min

 N/A 0.0043 in0.110 mm

Pre Install Clearance Max

 N/A 0.0055 in0.140 mm