Part Number QAAPR18A090S, Double Concentric Four-Bolt Pillow Block On The Timken Company


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	Part Number QAAPR18A090S, Double Concentric Four-Bolt Pillow Block

Timken-Mounted-Bearing-Double-Concentric-Four-Bolt-Pillow-Block

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Double Concentric Four-Bolt Pillow 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		90 mm

Shaft Size Type		Metric

Full Timken Part Number		QAAPR18A090SB QAAPR18A090SC QAAPR18A090SEB QAAPR18A090SEC QAAPR18A090SEM QAAPR18A090SEN QAAPR18A090SEO QAAPR18A090SET QAAPR18A090SM QAAPR18A090SN QAAPR18A090SO QAAPR18A090ST

Locking Style		Double Concentric

Housing Construction		Four-Bolt Pillow Block

UPC Code		0883450030304 0883450030311 0883450030335 0883450030342 0883450030359 0883450030366 0883450030373 0883450030380 0883450190046 0883450190152 0883450267403 0883450267519

Dimensions

Dimension A		3.75 in 95.3 mm

Dimension B		7.69 in 195.3 mm

Dimension C		5.13 in 130.3 mm

Dimension D Min		9.25 in 235 mm

Dimension D Max		11.25 in 285.8 mm

Dimension E		2.38 in 60.5 mm

Dimension F		13.63 in 346.2 mm

Dimension G		3.75 in 95.3 mm

Dimension H		1.56 in 39.6 mm

Dimension J (Bolt Size)		0.75 in 20 mm

Dimension L		4.47 in 113.5 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 QAAPR18A090S, Double Concentric Four-Bolt Pillow 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 Min

Dimension D Max

Dimension E

Dimension F

Dimension G

Dimension H

Dimension J (Bolt Size)

Dimension L

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