Part Number QAF20A315S, Single Concentric Flange 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 Flange Block > Part Number QAF20A315S


	Part Number QAF20A315S, Single Concentric Flange Block

Timken-Mounted-Bearing-Single-Concentric-Four-Bolt-Square-Flange-Block

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Single Concentric Four Bolt Square Flange 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		22220

Shaft Size		3 15/16 in

Shaft Size Type		Imperial

Full Timken Part Number		QAF20A315SB QAF20A315SC QAF20A315SEB QAF20A315SEC QAF20A315SEM QAF20A315SEN QAF20A315SEO QAF20A315SET QAF20A315SM QAF20A315SN QAF20A315SO QAF20A315ST

Locking Style		Single Concentric

Housing Construction		Flange Block

UPC Code		0883450039208 0883450039215 0883450039239 0883450039246 0883450039253 0883450039260 0883450039277 0883450039284 0883450190763 0883450190923 0883450268127 0883450268288

Dimensions

Dimension BC		10.96 in 278.4 mm

Dimension C		6 in 152.4 mm

Dimension D		8.5 in 215.9 mm

Dimension E		7 3/4 in 196.9 mm

Dimension F		9.97 in 253.2 mm

Dimension H		1.5 in 38.1 mm

Dimension J (Bolt Size)		0.875 in 24 mm

Dimension KA		1.63 in 41.4 mm

Dimension L Exp		5.04 in 128 mm

Dimension L Fix		4.96 in 126 mm

Dimension M		2.97 in 75.4 mm

Dimension N		4.06 in 103.1 mm

Dimension RA		0.37 in 9.4 mm

Dimension SA		4.59 in 116.6 mm

Radial and Thrust Factors

C0 - Static Load		113000 lbf 502000 N

C - Dynamic Load (Basic)		97700 lbf 435000 N

e - Geometry Factor		0.24

Y1 - Geometry Factor		2.84

Y2 - Geometry Factor		4.23

Engineering Seal Speed

Oil Lubrication - M/N Seal		1200 rpm

Oil Lubrication - T Seal		2000 rpm

Oil Lubrication - B/C/O Seal		900 rpm

Grease Lubrication - M/N Seal		1200 rpm

Grease Lubrication - T Seal		1600 rpm

Grease Lubrication - B/C/O Seal		900 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		0.003

Eng Internal Radial Clearance - Max		0.0047

Pre Install Clearance Min		0.0030 in 0.075 mm

Pre Install Clearance Max		0.0047 in 0.120 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 QAF20A315S, Single Concentric Flange Block

Engineering Group

Bearing Number

Shaft Size

Shaft Size Type

Full Timken Part Number

Locking Style

Housing Construction

UPC Code

Dimension BC

Dimension C

Dimension D

Dimension E

Dimension F

Dimension H

Dimension J (Bolt Size)

Dimension KA

Dimension L Exp

Dimension L Fix

Dimension M

Dimension N

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