Part Number QMMC18J308S, Eccentric Cartridge Block On The Timken Company


All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Eccentric Solid-Block Mounted Bearings > Eccentric Cartridge Block > Part Number QMMC18J308S


	Part Number QMMC18J308S, Eccentric Cartridge Block

Timken-Mounted-Bearing-Eccentric-Cartridge-Block

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Eccentric 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		QMMC18J308SB QMMC18J308SC QMMC18J308SEB QMMC18J308SEC QMMC18J308SEM QMMC18J308SEN QMMC18J308SEO QMMC18J308SET QMMC18J308SM QMMC18J308SN QMMC18J308SO QMMC18J308ST

Locking Style		Eccentric

Housing Construction		Cartridge

UPC Code		0883450078429 0883450078436 0883450078450 0883450078467 0883450078474 0883450078481 0883450078498 0883450078504 0883450168014 0883450168694 0883450259811 0883450260299

Dimensions

Dimension A		0.59 in 15 mm

Dimension B		1.06 in 26.9 mm

Dimension C		4.76 in 120.9 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 K		1.44 in 36.6 mm

Dimension L Exp		4.4 in 111.8 mm

Dimension L Fix		4.32 in 109.7 mm

Dimension M		2.56 in 65 mm

Dimension R		0.29 in 7.4 mm

Dimension S		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 QMMC18J308S, Eccentric 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 K

Dimension L Exp

Dimension L Fix

Dimension M

Dimension R

Dimension S

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