Part Number QAPR18A085S, Single Concentric Four-Bolt Pillow Block On The Timken Company


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	Part Number QAPR18A085S, Single Concentric Four-Bolt Pillow Block

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

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Single 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		85 mm

Shaft Size Type		Metric

Full Timken Part Number		QAPR18A085SB QAPR18A085SC QAPR18A085SEB QAPR18A085SEC QAPR18A085SEM QAPR18A085SEN QAPR18A085SEO QAPR18A085SET QAPR18A085SM QAPR18A085SN QAPR18A085SO QAPR18A085ST

Locking Style		Single Concentric

Housing Construction		Four-Bolt Pillow Block

UPC Code		0883450333481 0883450333498 0883450333504 0883450333511 0883450333528 0883450333535 0883450333542 0883450333559 0883450333566 0883450333573 0883450333580 0883450333597

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 KA		1.44 in 36.6 mm

Dimension L		4.47 in 113.5 mm

Dimension M		2.59 in 65.8 mm

Dimension RA		0.31 in 7.9 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 QAPR18A085S, Single 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 KA

Dimension L

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