Part Number QAAFY20A400S, Double Concentric Round Flange Block On The Timken Company


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	Part Number QAAFY20A400S, Double Concentric Round Flange Block

Timken-Mounted-Bearing-Double-Concentric-Round-Flange-Block

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Double Concentric Round Flange Block - Dimensional Drawing

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Specifications · Dimensions · Radial and Thrust Factors · Engineering Seal Speed · Engineering Bearing Attributes · Engineering Internal Radial Clearance

Specifications

Engineering Group		Mounted Bearing

Bearing Number		22220

Shaft Size		4 in

Shaft Size Type		Imperial

Full Timken Part Number		QAAFY20A400SB QAAFY20A400SC QAAFY20A400SEB QAAFY20A400SEC QAAFY20A400SEM QAAFY20A400SEN QAAFY20A400SEO QAAFY20A400SET QAAFY20A400SM QAAFY20A400SN QAAFY20A400SO QAAFY20A400ST

Locking Style		Double Concentric

Housing Construction		Round Flange

UPC Code		0883450023207 0883450023214 0883450023238 0883450023245 0883450023252 0883450023269 0883450023276 0883450023283 0883450192552 0883450192736 0883450269759 0883450269933

Dimensions

Dimension BC		10.75 in 273.1 mm

Dimension C		6 in 152.4 mm

Dimension D		8.38 in 212.9 mm

Dimension E		7.6 in 193 mm

Dimension F		12.63 in 320.8 mm

Dimension H		1.13 in 28.7 mm

Dimension J (Bolt Size)		1 in 24 mm

Dimension L Exp		4.95 in 125.7 mm

Dimension L Fix		4.87 in 123.7 mm

Dimension M		2.97 in 75.4 mm

Dimension N		3.81 in 96.8 mm

Dimension RAA		1.05 in 26.7 mm

Dimension SAA		5.92 in 150.4 mm

Radial and Thrust Factors

C0 - Static Load		113000 lbf 502000 N

C - Dynamic Load (Basic)		97700 lbf 435000 N

e - Geometry Factor		0.24

Y1 - Geometry Factor		2.84

Y2 - Geometry Factor		4.23

Engineering Seal Speed

Oil Lubrication - M/N Seal		1200 rpm

Oil Lubrication - T Seal		2000 rpm

Oil Lubrication - B/C/O Seal		900 rpm

Grease Lubrication - M/N Seal		1200 rpm

Grease Lubrication - T Seal		1600 rpm

Grease Lubrication - B/C/O Seal		900 rpm

Engineering Bearing Attributes

Float		0.083 in 2.108 mm

Shaft Tolerance		0.0030 in 0.076 mm

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min		0.0030

Eng Internal Radial Clearance - Max		0.0047

Pre Install Clearance Min		0.0030 in 0.075 mm

Pre Install Clearance Max		0.0047 in 0.120 mm

VIEW CAD DRAWING



· 3D


· 2D Front View


· 2D Left View


· 2D Sales Drawing

DOWNLOADS


		Bearing Life Calculation Tool

		Primary Sealing (PDF, 280KB)

		TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS

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Part Number QAAFY20A400S, Double Concentric Round Flange Block

Engineering Group

Bearing Number

Shaft Size

Shaft Size Type

Full Timken Part Number

Locking Style

Housing Construction

UPC Code

Dimension BC

Dimension C

Dimension D

Dimension E

Dimension F

Dimension H

Dimension J (Bolt Size)

Dimension L Exp

Dimension L Fix

Dimension M

Dimension N

Dimension RAA

Dimension SAA

C0 - Static Load

C - Dynamic Load (Basic)

e - Geometry Factor

Y1 - Geometry Factor

Y2 - Geometry Factor

Oil Lubrication - M/N Seal

Oil Lubrication - T Seal

Oil Lubrication - B/C/O Seal

Grease Lubrication - M/N Seal

Grease Lubrication - T Seal

Grease Lubrication - B/C/O Seal

Float

Shaft Tolerance

Eng Internal Radial Clearance - Min

Eng Internal Radial Clearance - Max

Pre Install Clearance Min

Pre Install Clearance Max