Part Number QAF18A307S, Single Concentric Flange Block On The Timken Company


All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Single Concentric Solid-Block Mounted Bearings > Single Concentric Flange Block > Part Number QAF18A307S


	Part Number QAF18A307S, Single Concentric Flange Block

Timken-Mounted-Bearing-Single-Concentric-Four-Bolt-Square-Flange-Block

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Single Concentric Four Bolt Square 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		QAF18A307SB QAF18A307SC QAF18A307SEB QAF18A307SEC QAF18A307SEM QAF18A307SEN QAF18A307SEO QAF18A307SET QAF18A307SM QAF18A307SN QAF18A307SO QAF18A307SONP QAF18A307SOXY QAF18A307ST

Locking Style		Single Concentric

Housing Construction		Flange Block

UPC Code		0883450039000 0883450039017 0883450039031 0883450039048 0883450039055 0883450039062 0883450039079 0883450039086 0883450190732 0883450190893 0883450268097 0883450268257 0883450494403 0883450494410

Dimensions

Dimension BC		9.91 in 251.7 mm

Dimension C		5.13 in 130.3 mm

Dimension D		7.63 in 193.8 mm

Dimension E		7 in 177.8 mm

Dimension F		8.63 in 219.2 mm

Dimension H		1.31 in 33.3 mm

Dimension J (Bolt Size)		0.75 in 20 mm

Dimension KA		1.44 in 36.6 mm

Dimension L Exp		4.3 in 109.2 mm

Dimension L Fix		4.22 in 107.2 mm

Dimension M		2.59 in 65.8 mm

Dimension N		3.31 in 84.1 mm

Dimension RA		0.19 in 4.8 mm

Dimension SA		4.03 in 102.4 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 QAF18A307S, Single Concentric 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 KA

Dimension L Exp

Dimension L Fix

Dimension M

Dimension N

Dimension RA

Dimension SA

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