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Unit of Measure

Key Dimensions

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22208

Shaft Size

 N/A 1 1/2 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QMPMD08J108SB QMPMD08J108SC QMPMD08J108SEB QMPMD08J108SEC QMPMD08J108SEM QMPMD08J108SEN QMPMD08J108SEO QMPMD08J108SET QMPMD08J108SM QMPMD08J108SN QMPMD08J108SO QMPMD08J108ST

Locking Style

 N/A Eccentric

Housing Construction

 N/A Two-Bolt Pillow Block

Other Dimensions

Dimension A

 N/A 2.13 in54.1 mm

Dimension B

 N/A 4.46 in113.3 mm

Dimension C

 N/A 2.38 in60.5 mm

Dimension D Min

 N/A 5.5 in139.7 mm

Dimension D Max

 N/A 6.19 in157.2 mm

Dimension F

 N/A 7.44 in189 mm

Dimension G

 N/A 2.44 in62 mm

Dimension H

 N/A 1 in25.4 mm

Dimension J (Bolt Size)

 N/A 0.5 in12 mm

Dimension K

 N/A 1 in25.4 mm

Dimension L

 N/A 2.97 in75.4 mm

Dimension M

 N/A 1.75 in44.5 mm

Dimension R

 N/A 0.22 in5.6 mm

Dimension S

 N/A 2.75 in69.9 mm

Radial and Thrust Factors

e - Geometry Factor

 N/A 0.27

Y1 - Geometry Factor

 N/A 2.47

Y2 - Geometry Factor

 N/A 3.67

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 2700 rpm

Oil Lubrication - T Seal

 N/A 4500 rpm

Oil Lubrication - B/C/O Seal

 N/A 1950 rpm

Grease Lubrication - M/N Seal

 N/A 2700 rpm

Grease Lubrication - T Seal

 N/A 4000 rpm

Grease Lubrication - B/C/O Seal

 N/A 1950 rpm

Engineering Bearing Attributes

Float

 N/A 0.050 in1.270 mm

Shaft Tolerance

 N/A 0.0010 in0.025 mm

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min

 N/A 0.0012

Eng Internal Radial Clearance - Max

 N/A 0.0018

Pre Install Clearance Min

 N/A 0.0012 in0.030 mm

Pre Install Clearance Max

 N/A 0.0018 in0.045 mm