Part Number QAATU18A308S, Double Concentric Take-Up 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 Take-Up Block > Part Number QAATU18A308S


	Part Number QAATU18A308S, Double Concentric Take-Up Block

Timken-Mounted-Bearing-Double-Concentric-Take-Up-Block

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Double Concentric Take-Up 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		QAATU18A308SB QAATU18A308SC QAATU18A308SEB QAATU18A308SEC QAATU18A308SEM QAATU18A308SEN QAATU18A308SEO QAATU18A308SET QAATU18A308SM QAATU18A308SN QAATU18A308SO QAATU18A308ST

Locking Style		Double Concentric

Housing Construction		Take-Up

UPC Code		0883450016391 0883450016421 0883450016490 0883450016520 0883450016599 0883450034302 0883450034319 0883450034371 0883450034388 0883450195591 0883450272780 0883450272940

Dimensions

Dimension A1		3.63 in 92.2 mm

Dimension C		1 in 25.4 mm

Dimension D		7.63 in 193.8 mm

Dimension E		6.81 in 173 mm

Dimension F		1.81 in 46 mm

Dimension G		1.88 in 47.8 mm

Dimension J		4.88 in 124 mm

Dimension L		10.12 in 257 mm

Dimension M		2.59 in 65.8 mm

Dimension N		4.22 in 107.2 mm

Dimension P		6.25 in 158.8 mm

Dimension S		1.81 in 46 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		0.08 in 2.03 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 QAATU18A308S, Double Concentric Take-Up Block

Engineering Group

Bearing Number

Shaft Size

Shaft Size Type

Full Timken Part Number

Locking Style

Housing Construction

UPC Code

Dimension A1

Dimension C

Dimension D

Dimension E

Dimension F

Dimension G

Dimension J

Dimension L

Dimension M

Dimension N

Dimension P

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