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 11/16 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QAAFL20A311SB QAAFL20A311SC QAAFL20A311SEB QAAFL20A311SEC QAAFL20A311SEM QAAFL20A311SEN QAAFL20A311SEO QAAFL20A311SET QAAFL20A311SM QAAFL20A311SN QAAFL20A311SO QAAFL20A311ST

Locking Style

 N/A Double Concentric

Housing Construction

 N/A Flange Block

Dimensions

Dimension BC

 N/A 10.75 in273.1 mm

Dimension C

 N/A 6 in152.4 mm

Dimension D

 N/A 8.39 in213.1 mm

Dimension E

 N/A 7.6 in193 mm

Dimension F

 N/A 9.5 in241.3 mm

Dimension H

 N/A 1.5 in38.1 mm

Dimension J (Bolt Size)

 N/A 1 in24 mm

Dimension L Exp

 N/A 5.29 in134.4 mm

Dimension L Fix

 N/A 5.21 in132.3 mm

Dimension M

 N/A 2.97 in75.4 mm

Dimension N

 N/A 4.12 in104.6 mm

Dimension RAA

 N/A 0.71 in18 mm

Dimension SAA

 N/A 5.92 in150.4 mm

Dimension G

 N/A 8.5 in215.9 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 2.84

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 in2.108 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