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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22220

Shaft Size

 N/A 3 3/4 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QASN20A312SB QASN20A312SC QASN20A312SEB QASN20A312SEC QASN20A312SEM QASN20A312SEN QASN20A312SEO QASN20A312SET QASN20A312SM QASN20A312SN QASN20A312SO QASN20A312ST

Locking Style

 N/A Single Concentric

Housing Construction

 N/A Two-Bolt Pillow Block

UPC Code

 N/A 883450355711 883450355728 883450355735 883450355742 883450355759 883450355766 883450355773 883450355780 883450355797 883450355803 883450355810 883450355827

Dimensions

Dimension A

 N/A 4.92 in125 mm

Dimension B

 N/A 9.49 in241 mm

Dimension C

 N/A 5.98 in152 mm

Dimension D Min

 N/A 12.56 in319 mm

Dimension D Max

 N/A 14.41 in366 mm

Dimension F

 N/A 16.14 in410 mm

Dimension G

 N/A 3.98 in101 mm

Dimension H

 N/A 1.97 in50 mm

Dimension J (Bolt Size)

 N/A 0.875 in24 mm

Dimension KA

 N/A 1.61 in41 mm

Dimension L

 N/A 4.96 in126 mm

Dimension M

 N/A 2.95 in75 mm

Dimension RA

 N/A 0.39 in10 mm

Dimension SA

 N/A 4.61 in117 mm

Radial and Thrust Factors

C0 - Static Load

 N/A 113000 lbf502000 N

C - Dynamic Load (Basic)

 N/A 97700 lbf435000 N

e - Geometry Factor

 N/A 0.24

Y1 - Geometry Factor

 N/A 2.85

Y2 - Geometry Factor

 N/A 4.24

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 1200 rpm

Oil Lubrication - T Seal

 N/A 2000 rpm

Oil Lubrication - B/C/O Seal

 N/A 900 rpm

Grease Lubrication - M/N Seal

 N/A 1200 rpm

Grease Lubrication - T Seal

 N/A 1600 rpm

Grease Lubrication - B/C/O Seal

 N/A 900 rpm

Engineering Bearing Attributes

Float

 N/A 0.083 in2.108 mm

Shaft Tolerance

 N/A 0.0030 in0.076 mm

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min

 N/A 0.0030

Eng Internal Radial Clearance - Max

 N/A 0.0047

Pre Install Clearance Min

 N/A 0.0030 in0.075 mm

Pre Install Clearance Max

 N/A 0.0047 in0.120 mm
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