Part Number QAAMC18A308S, Double Concentric Cartridge Block On The Timken Company


All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Double Concentric Solid-Block Mounted Bearings > Double Concentric Cartridge Block > Part Number QAAMC18A308S


	Part Number QAAMC18A308S, Double Concentric Cartridge Block

Timken-Mounted-Bearing-Double-Concentric-Cartridge-Block

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Double Concentric Cartridge 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 1/2 in

Shaft Size Type		Imperial

Full Timken Part Number		QAAMC18A308SB QAAMC18A308SC QAAMC18A308SEB QAAMC18A308SEC QAAMC18A308SEM QAAMC18A308SEN QAAMC18A308SEO QAAMC18A308SET QAAMC18A308SM QAAMC18A308SN QAAMC18A308SO QAAMC18A308ST

Locking Style		Double Concentric

Housing Construction		Cartridge

UPC Code		0883450024808 0883450024815 0883450024839 0883450024846 0883450024853 0883450024860 0883450024877 0883450024884 0883450194938 0883450195102 0883450272100 0883450272278

Dimensions

Dimension A		0.59 in 15 mm

Dimension B		1.06 in 26.9 mm

Dimension C		5.13 in 130.3 mm

Dimension D		0.23 in 5.8 mm

Dimension F		6.7500 in 171.5 mm

Dimension G		3.45 in 87.6 mm

Dimension L Exp		4.42 in 112.3 mm

Dimension L Fix		4.34 in 110.2 mm

Dimension M		2.59 in 65.8 mm

Dimension RAA		0.84 in 21.3 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 QAAMC18A308S, Double Concentric Cartridge Block

Engineering Group

Bearing Number

Shaft Size

Shaft Size Type

Full Timken Part Number

Locking Style

Housing Construction

UPC Code

Dimension A

Dimension B

Dimension C

Dimension D

Dimension F

Dimension G

Dimension L Exp

Dimension L Fix

Dimension M

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