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 22228

Shaft Size

 N/A 125 mm

Shaft Size Type

 N/A Metric

Full Timken Part Number

 N/A TAA4SD28K125SB TAA4SD28K125SC TAA4SD28K125SEB TAA4SD28K125SEC TAA4SD28K125SEM TAA4SD28K125SEN TAA4SD28K125SEO TAA4SD28K125SET TAA4SD28K125SMT TAA4SD28K125SNT TAA4SD28K125SO TAA4SD28K125ST

Locking Style

 N/A Double Nut Tapered Adapter

Housing Construction

 N/A Four-Bolt Pillow Block

Dimensions

Dimension A

 N/A 7-1/2 in190.5 mm

Dimension B

 N/A 13-1/2 in342.9 mm

Dimension C

 N/A 7.09 in180 mm

Dimension D Min

 N/A 17.75 in450.9 mm

Dimension D Max

 N/A 19.75 in501.7 mm

Dimension E

 N/A 3-3/4 in95.3 mm

Dimension F

 N/A 23 in584.2 mm

Dimension G

 N/A 6.01 in152.7 mm

Dimension H

 N/A 2 in50.8 mm

Dimension J (Bolt Size)

 N/A 1 in24 mm

Dimension L

 N/A 6.13 in155.7 mm

Dimension MT

 N/A 3.12 in79.2 mm

Dimension RTT

 N/A 0.41 in10.4 mm

Dimension ST

 N/A 6.1 in154.9 mm

Radial and Thrust Factors

C0 - Static Load

 N/A 237000 lbf1060000 N

C - Dynamic Load (Basic)

 N/A 194000 lbf863000 N

e - Geometry Factor

 N/A 0.25

Y1 - Geometry Factor

 N/A 2.67

Y2 - Geometry Factor

 N/A 3.98

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 650 rpm

Oil Lubrication - T Seal

 N/A 1200 rpm

Oil Lubrication - B/C/O Seal

 N/A 350 rpm

Grease Lubrication - M/N Seal

 N/A 650 rpm

Grease Lubrication - T Seal

 N/A 900 rpm

Grease Lubrication - B/C/O Seal

 N/A 350 rpm

Engineering Bearing Attributes

Float

 N/A 0.083 in2.108 mm

Shaft Tolerance

 N/A 0.0050 in0.127 mm

Engineering Internal Radial Clearance

Pre Install Clearance Min

 N/A 0.0063 in0.160 mm

Pre Install Clearance Max

 N/A 0.0079 in0.201 mm