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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 TAFK20K308SB TAFK20K308SC TAFK20K308SEB TAFK20K308SEC TAFK20K308SEM TAFK20K308SEN TAFK20K308SEO TAFK20K308SET TAFK20K308SM TAFK20K308SN TAFK20K308SO TAFK20K308ST

Locking Style

 N/A Tapered Adapter

Housing Construction

 N/A Four-Bolt Square Flange

UPC Code

 N/A 0883450381246 0883450381253 0883450381260 0883450381277 0883450381284 0883450381291 0883450381307 0883450381314 0883450381321 0883450381338 0883450381345 0883450381352

Other Dimensions

Dimension BC

 N/A 11.75 in298.5 mm

Dimension C

 N/A 5.12 in130 mm

Dimension D

 N/A 8.5 in215.9 mm

Dimension E

 N/A 8.31 in211.1 mm

Dimension F

 N/A 10.56 in268.2 mm

Dimension H

 N/A 1.5 in38.1 mm

Dimension J (Bolt Size)

 N/A 0.875 in24 mm

Dimension L Exp

 N/A 4.59 in116.6 mm

Dimension L Fix

 N/A 4.51 in114.6 mm

Dimension M

 N/A 2.3 in58.4 mm

Dimension N

 N/A 4.06 in103.1 mm

Dimension R

 N/A 0.69 in17.5 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