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Unit of Measure

Key Dimensions

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 QMCW20J311SB QMCW20J311SC QMCW20J311SEB QMCW20J311SEC QMCW20J311SEM QMCW20J311SEN QMCW20J311SEO QMCW20J311SET QMCW20J311SM QMCW20J311SN QMCW20J311SO QMCW20J311ST

Locking Style

 N/A Eccentric

Housing Construction

 N/A Piloted Flange Cartridge

UPC Code

 N/A 0883450063920 0883450063937 0883450063951 0883450063968 0883450063975 0883450063982 0883450063999 0883450064002 0883450166638 0883450167352 0883450258814 0883450259354

Other Dimensions

Dimension BC

 N/A 9.38 in238.3 mm

Dimension B Exp

 N/A 2.58 in65.5 mm

Dimension B Fix

 N/A 2.5 in63.5 mm

Dimension C

 N/A 6 in152.4 mm

Dimension D

 N/A 8.13 in206.5 mm

Dimension E

 N/A 6.63 in168.4 mm

Dimension F

 N/A 10.88 in276.4 mm

Dimension G

 N/A 8.125 in206.4 mm

Dimension H

 N/A 1 in25.4 mm

Dimension J (Bolt Size)

 N/A 0.75 in20 mm

Dimension K

 N/A 1.63 in41.4 mm

Dimension L Exp

 N/A 4.83 in122.7 mm

Dimension L Fix

 N/A 4.75 in120.7 mm

Dimension M

 N/A 2.96 in75.2 mm

Dimension N

 N/A 2.25 in57.2 mm

Dimension R

 N/A 0.16 in4.1 mm

Dimension S

 N/A 4.59 in116.6 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 0.0030 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