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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22220

Shaft Size

 N/A 3 3/4 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QAAF20A312SB QAAF20A312SC QAAF20A312SEB QAAF20A312SEC QAAF20A312SEM QAAF20A312SEN QAAF20A312SEO QAAF20A312SET QAAF20A312SM QAAF20A312SN QAAF20A312SO QAAF20A312ST

Locking Style

 N/A Double Concentric

Housing Construction

 N/A Flange Block

Dimensions

Dimension BC

 N/A 10.96 in

Dimension C

 N/A 6 in

Dimension D

 N/A 8.75 in

Dimension E

 N/A 7.75 in

Dimension F

 N/A 9.97 in

Dimension H

 N/A 1.5 in

Dimension J (Bolt Size)

 N/A 0.875 in

Dimension L Exp

 N/A 5.04 in

Dimension L Fix

 N/A 4.96 in

Dimension M

 N/A 2.97 in

Dimension N

 N/A 4.06 in

Dimension RAA

 N/A 0.95 in

Dimension SAA

 N/A 5.92 in

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 2.84

Y2 - Geometry Factor

 N/A 4.23

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 in

Shaft Tolerance

 N/A 0.0030 in

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 in

Pre Install Clearance Max

 N/A 0.0047 in