Menu
Find Your Nearest Timken Sales Office or Authorized Distributor

Our locator tool helps you connect with the right Timken partner quickly. Registered users
can save their nearest Timken Sales office or distributor in their dashboard.

Try the Locator Tool
Analyze Bearing Performance in an Application with Timken ® Syber ® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More
Explore Timken Engineering Tools
Videos on YouTube

Check out our Engineering Tools video playlist on YouTube. These short walkthroughs
help you navigate Timken calculation tools, selection guides and digital resources.

View the Full Playlist
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
 
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 TACK28K125SB TACK28K125SC TACK28K125SEB TACK28K125SEC TACK28K125SEM TACK28K125SEN TACK28K125SEO TACK28K125SET TACK28K125SM TACK28K125SN TACK28K125SO TACK28K125ST

Locking Style

 N/A Tapered Adapter

Housing Construction

 N/A Piloted Flange Cartridge

Dimensions

Dimension BC

 N/A 14.5 in368.3 mm

Dimension C

 N/A 7.09 in180 mm

Dimension D

 N/A 12 in304.8 mm

Dimension E

 N/A 7.25 in184.2 mm

Dimension F

 N/A 17 in431.8 mm

Dimension G

 N/A 13 in330.2 mm

Dimension H

 N/A 1 in25.4 mm

Dimension J (Bolt Size)

 N/A 1 in25.4 mm

Dimension L

 N/A 5.25 in133.5 mm

Dimension M

 N/A 3.05 in77.5 mm

Dimension N

 N/A 2.56 in65 mm

Dimension R

 N/A 0.09 in2.3 mm

Dimension S

 N/A 5.16 in131 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 0.26

Y1 - Geometry Factor

 N/A 2.62

Y2 - Geometry Factor

 N/A 3.89

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

Eng Internal Radial Clearance - Min

 N/A 0.0063

Eng Internal Radial Clearance - Max

 N/A 0.0079

Pre Install Clearance Min

 N/A 0.0063 in0.160 mm

Pre Install Clearance Max

 N/A 0.0079 in0.201 mm
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.