Part Number QAMC18A308S, Single Concentric Cartridge 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 Cartridge Block > Part Number QAMC18A308S


	Part Number QAMC18A308S, Single Concentric Cartridge Block

Timken-Mounted-Bearing-Single-Concentric-Cartridge-Block

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Single 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		QAMC18A308SB QAMC18A308SC QAMC18A308SEB QAMC18A308SEC QAMC18A308SEM QAMC18A308SEN QAMC18A308SEO QAMC18A308SET QAMC18A308SM QAMC18A308SN QAMC18A308SO QAMC18A308ST

Locking Style		Single Concentric

Housing Construction		Cartridge

UPC Code		0883450043908 0883450043915 0883450043939 0883450043946 0883450043953 0883450043960 0883450043977 0883450043984 0883450194617 0883450194778 0883450271783 0883450271943

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 KA		1.44 in 36.6 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 RA		0.29 in 7.4 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 QAMC18A308S, Single 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 KA

Dimension L Exp

Dimension L Fix

Dimension M

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