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Unit of Measure

Key Dimensions

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22211

Shaft Size

 N/A 55 mm

Shaft Size Type

 N/A Metric

Full Timken Part Number

 N/A QAC11A055SB QAC11A055SC QAC11A055SEB QAC11A055SEC QAC11A055SEM QAC11A055SEN QAC11A055SEO QAC11A055SET QAC11A055SM QAC11A055SN QAC11A055SO QAC11A055ST

Locking Style

 N/A Single Concentric

Housing Construction

 N/A Piloted Flange Cartridge

UPC Code

 N/A 0883450323703 0883450323710 0883450323727 0883450323734 0883450323741 0883450323758 0883450323765 0883450323772 0883450323789 0883450323796 0883450323802 0883450323819

Other Dimensions

Dimension BC

 N/A 6 in152.4 mm

Dimension B Exp

 N/A 2.22 in56.4 mm

Dimension B Fix

 N/A 2.14 in54.4 mm

Dimension C

 N/A 3.25 in82.6 mm

Dimension D

 N/A 5 in127 mm

Dimension E

 N/A 4.24 in107.7 mm

Dimension F

 N/A 7.3 in185.4 mm

Dimension G

 N/A 5 in127 mm

Dimension H

 N/A 0.58 in14.7 mm

Dimension J (Bolt Size)

 N/A 0.5 in12 mm

Dimension KA

 N/A 1.13 in28.7 mm

Dimension L Exp

 N/A 3.35 in85.1 mm

Dimension L Fix

 N/A 3.27 in83.1 mm

Dimension M

 N/A 2 in50.8 mm

Dimension N

 N/A 1.13 in28.7 mm

Dimension RA

 N/A 0.14 in3.6 mm

Dimension SA

 N/A 3.13 in79.5 mm

Radial and Thrust Factors

C0 - Static Load

 N/A 31900 lbf142000 N

C - Dynamic Load (Basic)

 N/A 31400 lbf140000 N

e - Geometry Factor

 N/A 0.23

Y1 - Geometry Factor

 N/A 2.95

Y2 - Geometry Factor

 N/A 4.40

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 2200 rpm

Oil Lubrication - T Seal

 N/A 3800 rpm

Oil Lubrication - B/C/O Seal

 N/A 1600 rpm

Grease Lubrication - M/N Seal

 N/A 2200 rpm

Grease Lubrication - T Seal

 N/A 3200 rpm

Grease Lubrication - B/C/O Seal

 N/A 1600 rpm

Engineering Bearing Attributes

Float

 N/A 0.050 in1.270 mm

Shaft Tolerance

 N/A 0.0015 in0.038 mm

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min

 N/A 0.0016

Eng Internal Radial Clearance - Max

 N/A 0.0026

Pre Install Clearance Min

 N/A 0.0016 in0.040 mm

Pre Install Clearance Max

 N/A 0.0026 in0.065 mm