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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 TATU20K308SB TATU20K308SC TATU20K308SEB TATU20K308SEC TATU20K308SEM TATU20K308SEN TATU20K308SEO TATU20K308SET TATU20K308SM TATU20K308SN TATU20K308SO TATU20K308ST

Locking Style

N/A Tapered Adapter

Housing Construction

N/A Take-Up

Other Dimensions

Dimension A

N/A 4.13 in104.9 mm

Dimension C

N/A 1.13 in28.7 mm

Dimension D

N/A 9.44 in239.8 mm

Dimension E

N/A 8.63 in219.2 mm

Dimension F

N/A 2.13 in54.1 mm

Dimension G

N/A 2.06 in52.3 mm

Dimension H

N/A 5.12 in130 mm

Dimension J

N/A 5.63 in143 mm

Dimension L

N/A 11.69 in296.9 mm

Dimension M

N/A 2.3 in58.4 mm

Dimension N

N/A 4.14 in105.2 mm

Dimension P

N/A 7 in177.8 mm

Dimension S

N/A 2.06 in52.3 mm

Dimension U

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 0.24

Y1 - Geometry Factor

N/A 2.85

Y2 - Geometry Factor

N/A 4.24

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 0.08 in2.03 mm

Shaft Tolerance

N/A 0.0030 in0.076 mm

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min

N/A 0.0030

Eng Internal Radial Clearance - Max

N/A 0.0047

Pre Install Clearance Min

N/A 0.0030 in0.075 mm

Pre Install Clearance Max

N/A 0.0047 in0.120 mm