Part Number QAAFY18A307S, Double Concentric Round Flange Block On The Timken Company


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	Part Number QAAFY18A307S, 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		22218

Shaft Size		3 7/16 in

Shaft Size Type		Imperial

Full Timken Part Number		QAAFY18A307SB QAAFY18A307SC QAAFY18A307SEB QAAFY18A307SEC QAAFY18A307SEM QAAFY18A307SEN QAAFY18A307SEO QAAFY18A307SET QAAFY18A307SM QAAFY18A307SN QAAFY18A307SO QAAFY18A307ST

Locking Style		Double Concentric

Housing Construction		Round Flange

UPC Code		0883450022903 0883450022910 0883450022934 0883450022941 0883450022958 0883450022965 0883450022972 0883450022989 0883450192514 0883450192699 0883450269711 0883450269896

Dimensions

Dimension BC		9.5 in 241.3 mm

Dimension C		5.13 in 130.3 mm

Dimension D		7.63 in 193.8 mm

Dimension E		6.72 in 170.7 mm

Dimension F		11.13 in 282.7 mm

Dimension H		1.13 in 28.7 mm

Dimension J (Bolt Size)		0.875 in 24 mm

Dimension L Exp		4.36 in 110.7 mm

Dimension L Fix		4.28 in 108.7 mm

Dimension M		2.59 in 65.8 mm

Dimension N		3.36 in 85.3 mm

Dimension RAA		0.9 in 22.9 mm

Dimension SAA		5.18 in 131.6 mm

Radial and Thrust Factors

C0 - Static Load		87200 lbf 388000 N

C - Dynamic Load (Basic)		79700 lbf 355000 N

e - Geometry Factor		0.23

Y1 - Geometry Factor		2.90

Y2 - Geometry Factor		4.31

Engineering Seal Speed

Oil Lubrication - M/N Seal		1400 rpm

Oil Lubrication - T Seal		2400 rpm

Oil Lubrication - B/C/O Seal		1000 rpm

Grease Lubrication - M/N Seal		1400 rpm

Grease Lubrication - T Seal		2000 rpm

Grease Lubrication - B/C/O Seal		1000 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		0.0024

Eng Internal Radial Clearance - Max		0.0039

Pre Install Clearance Min		0.0024 in 0.060 mm

Pre Install Clearance Max		0.0039 in 0.100 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 QAAFY18A307S, 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