The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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Unit of Measure

Specifications

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 TAA4SD20K308SB TAA4SD20K308SC TAA4SD20K308SEB TAA4SD20K308SEC TAA4SD20K308SEM TAA4SD20K308SEN TAA4SD20K308SEO TAA4SD20K308SET TAA4SD20K308SMT TAA4SD20K308SNT TAA4SD20K308SO TAA4SD20K308ST

Locking Style

 N/A Double Nut Tapered Adapter

Housing Construction

 N/A Four-Bolt Pillow Block

Dimensions

Dimension A

 N/A 5.5 in139.7 mm

Dimension B

 N/A 10 in254 mm

Dimension C

 N/A 5.12 in130 mm

Dimension D Min

 N/A 13 in330.2 mm

Dimension D Max

 N/A 14.5 in368.3 mm

Dimension E

 N/A 3.25 in82.56 mm

Dimension F

 N/A 16.75 in425.5 mm

Dimension G

 N/A 4.98 in126.5 mm

Dimension H

 N/A 1.56 in39.6 mm

Dimension J (Bolt Size)

 N/A 0.75 in20 mm

Dimension L

 N/A 4.7 in119.4 mm

Dimension MT

 N/A 2.21 in56.1 mm

Dimension RTT

 N/A 0.61 in15.5 mm

Dimension ST

 N/A 4.6 in116.8 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 0.083 in2.108 mm

Shaft Tolerance

 N/A 0.0040 in0.102 mm

Engineering Internal Radial Clearance

Pre Install Clearance Min

 N/A 0.0043 in0.109 mm

Pre Install Clearance Max

 N/A 0.0055 in0.140 mm